Qubes OS is the only OS that achieves acceptable security on desktop.
I also agree that Qubes OS is the best choice by far. Maybe OpenBSD, but thats not all to practical imho. I’d love a OpenBSD qube from the community though and like the efforts with kicksecure in Qubes 
Qubes should have a LOT more traction than it has.
I think Qubes OS can absolutely have MUCH more traction that it currently has. It not having that is due to several aspects not being addressed correctly:
Technical complexity keeps non-technical users and businesses away
Once setup, Qubes OS is easy to use even for end users. I can show my girlfriend how to use my laptop in five minutes - like open a browser, write an email and take a note (when I switch it from i3wm to xfce lol). The issue is the initial setup, and understanding how Qubes works exactly and how to setup Qubes OS securely. For this documentation and (some) youtube videos exist, but you just have to be “good at Linux” to setup Qubes so you can use it every day.
I think solutions to tackle that have been discussed extensively in the forum. A common approach is “an app store”. I am actually working on a “sort of config management system” - basically something where you write “apt-get -y install firefox” into a BASH script and then say something like qubes-os-manager-thingy install firefox
. I will publish that within the next weeks, its cli only though. If we had a guy like that (much like an app store), that would help a lot. (PS: Salt is WAY to complicated - even I don’t use it and I have a LOT of experience with Saltstack).
Removing the technical complexity for “installing firefox” is very important for further adoption I think. I think that should not be the task of the qubes team but of the community.
Marketing concept of Qubes OS
I just googled “most secure desktop OS” and there is a list of OS’s, and qubes is first (yay :)). Sadly after that, the qubes-os.org page doesn’t show up in the search results on the first page. A good shot of SEO for the main page qubes-os.org would fix that. The main page qubes-os.org has been looking like it does for a good while now. It also doesn’t really explain what Qubes is (exactly), whom it is for, maybe link to a yt video that shows “how it looks” and so on.
If you look at this from a sales / makreting perspective, thats very bad (no offense intended, just my humble opinion). Imagine a CTO browsing around for a new OS to use in his company and finding qubes-os.org. From tehre on you have about 30 seconds before he makes up his mind “lets try that or not”. The website should be optimized for this usecase I think - it should not start with “what others are saying” but “what is qubes”, “this is how it looks like”, “these are the problems it solves” and then “look this is snowden, he likes it too”. These texts should be SEO optimized as well as being nice to read for businesses that are interested.
Another important aspect is articles in newspapers and videos from popular youtubers / social media influencers and alike. This should be better organized, currently all those are listed in a thread here in the forum - connecting with other businesses that have a commercial interest in qubes, be it in using it themselves or offering consulting for it, to organize the effort would be helpful. They should be promoted on Qubes OS own social media channels as well I think, in order to gain more traction (as in: Qubes OS should (not financially, but from a management side) support marketing efforts that the community takes, and offer more organization for it).
Is there currently someone in the Qubes team that is tasked with marketing for Qubes OS?
PS: I know when you guys hear SEO you think scam, and you are generally right - I’ve tried to do SEO for my own company for the last 6 month and 95% of companies that offer SEO are scam. I hence tought myself some SEO and managed to significantly rank up my page for the keywords I want. There is nothing bad about SEO itself, just about most of those fishy companies that sell it 
Comparison to kali’s marketing strategy
I’m rather active on the linux.org forum, a forum mostly for Linux endusers. We have about 50 requests per month about nonsense like “gaming on kali”, and I’m LITERALLY the only one posting about qubes OS. Thats very sad. “Understanding kali” and its tools is obviously much more complex than being able to setup and run Qubes in a reasonable way - endusers hear kali, want to be mr. robot as well and install it (and then only 1% of them actually learn about it), but they talk about it, generate traction on social media and alike. Thats not the case with Qubes (or not even close to as much).
What kali did correctly here was target the masses with its marketing. Every tech noob knows kali as “the hacking distro”, but nobody knows Qubes OS as “the secure distro”. While it may seem irrelevant that noobs know about Qubes, or start spamming our beloved forum with “how to g4m1ng on qubes”, it is this broad knowledge in society that the distro exists, as in this popularity, that gives it more traction in the end. After all, humans are much more likely to “buy” (use) something if they have heared of it before.
For example think of the TV show Mr. Robot (Kali Linux + Mr. Robot ARG Society | Kali Linux Blog). Qubes OS could have easily made an appearance in that show, and it would have brought in more users, amongst which companies that can fund Qubes OS development.
Long story short - I feel like marketing for Qubes OS should be enhanced.
State of consulting services for Qubes OS
This is actually similar with Linux itself (on servers). I run a Linux consulting company and have MANY very technical customers (coders that built large and now popular websites), but the complexity of Linux makes them search for a Linux consulting company (if they dont fall for the aws “cloud trap”). With Qubes OS this is similar. Right now there are two Qubes OS consulting companies (google Qubes OS consulting) - nitrokey, which also sells Qubes OS certified hardware Consulting and Support for Qubes OS, NitroPhones, IT Security | shop.nitrokey.com and Blunix Qubes OS Consulting and Support for High Risk Environments. I know of one freelancer who is very active here in the forums who also sells Qubes consulting (not sure if the person want’s to be linked, hence not linking).
This should definitely be more, as in there should be more choice here, and I don’t want to nag the Qubes team but this has to be on the start page of qubes-os.org. I’ve started a large thread here in the forum to help make the three consultants I know of more visible.
If you have a company and you evaluate “secure OS’s”, then you will inevitably find Qubes, and if you’ve never heared of it before you will assume its more of a small project that hasn’t got traction yet, because you can’t find consulting for it. No large company would (should?) take on implementing Qubes without proper consulting. The big(ger) players that have the cash to support Qubes OS development don’t use Qubes because the support for it, as well as the marketing, is done wrong (I say that with the upmost respect for the Qubes team, I really really love Qubes OS, but from a business perspective I’m right about this one (imho)).
Imagine you run a coding company and you have issues with industrial espionage, but you are not (to much) into Linux administration. Or you are a journalist, or a human rights lawyer, and you are looking to implement Qubes OS. The chance that you can do so yourself is close to zero (in case of the coding company: if you want to do it soon and not invest time to learn about it). Everyone else will google for consulting.
There are positive aspects as well:
Pro: It runs Windows
One big aspect is being able to use Windows, which many companies (very sadly) can’t live without. I have recently tried qvm-create-windows-qube and managed to get a windows 11 running - but I haven’t tried to much on it, will do in the near future. From what I understand Windows is usable, it worked for me, so this isn’t critique but a plus 
Pro: Existing customers
About seven years ago I saw Qubes OS used widely in a large government intitution (incorrecly, ironically, lol, I showed them how to use it better) where I did some consulting. From the Qubes OS main website there are a few listings of large companies like letsencrypt - I’m not sure if they donate or not.
Sadly there are only very few (Endorsements | Qubes OS) this small number seems unrealistic… The list here should be much longer to convince new companies to try it. Also (as a CEO) I can not understand why there is no backlink to the company (wouldn’t hurt to link to mullvad, letsencypt and some security researchers no?).
Summary
I want to sell Qubes OS consulting with my company because I find it fascinating and something that actually helps companies be more secure. If the Qubes OS team would help my company, as well as the other companies that are interested in growing Qubes OS (novacustom, nitrokey, freelancers that offer Qubes OS consulting), manage and support marketing efforts, we all would win from this.