Two weeks.
2-3 days but the first time i installed Qubes i didn’t understand how to install software and update template so i put sys-firewall as network for template
Qubes dev need to put a warning at the first boot about this
When switching to Qubes OS:
- my threat model was pretty simple after having been way more complicated
- I was using Debian-based distros for many years
- I had to wait for better hardware to be able to use it (so, like @GWeck I had time to read things about Qubes OS)
- I was barely using my computer, maybe once a week
- I was mostly doing basic things: web browsing, file transfers, text edition, backups…
So it was quite smooth, I used a standalone to switch more quickly, even if it was inefficient. Compared to the previous situation, it was still better. So, since that time (2 or 3 years ago?), I’ve been peacefully learning things one after another.
There is a lot to learn, but it seems to me that your feeling might be more related to the security considerations than the OS itself? One important word here is “reasonably” (secure).
I would advocate for the opposite view
Unless you do something in dom0, it was easier for me to play with qubes than to try to understand the docs.
Coming from Arch linux made my experience far less troublesome it seems
Tails is way better for anti-forensics capabilities oob. But it’s not something to use long term for daily driving