Hello and welcome to community.
This can’t be answered for obvious reasons, so you risk to keep wondering.
It will work more secure for sure. Imagine drivers 50 years ago forced to have seat belts tied. Annoying, right? Will it work better? Only you may answer this.
If you’re not ready to change yourself and your using computer habits and routines, you’ll constantly find the reasons not to use Qubes.
Advice: each question to it’s own topic, while being as specific as possible in request. You’ll more likely get a valid answers and suggestions.
If I’m asked, you shouldn’t be able, but should use Qubes. Anyone actually. Anyone serious about security realize that sooner or later.
I was using a lot of VMs under WIndows for many years and never heard of Qubes. The day I realized I desperately need to detach my Windows host from internet, while Virtualbox being able to be online, Qubes came up in a search engine.
That is just great. Treat yourself and invest in and contribute to yourself. Use Qubes. In 6 months you’ll hopefully contribute to Qubes realizing how great the switch was.
Best regards
P.S.
Probably related