This feels like a step back from what we currently have.

I use Ublue, I think it's good.

I think it's account linked, not device linked.

Just know, it taken me three attempts at Nix, my first 2 lasting a day to a week and my last lasting a month. It's NOT something you're going to jump into without a LOT of learning and googling. Try it as an experiment on something you do not depend upon.

I use Kinoite over silverblue and other Fedora versions simply because of the desktop. I choose Fedora atomic over other immutable distros because I simply think it's the easiest/most convenient. VanillaOS might be pretty good, but from what I can tell it's on an Ubuntu/Debian update schedule which isn't what I want. I tried NixOS but it's complexity just wasn't appealing.

I use Bazzite over Kinoite because it has all of the tweaks I want, honestly the amount of "bloat" isn't as crazy as you'd imagine.

I don't have any resources about distrobox unfortunately, but I'm sure they're around.

Hi! I've been using Fedora Kinoite (and now Bazzite Desktop) for about a year.

I'd say bazzite desktop would be a good fit for you if you want to give an immutable desktop a try. It automatically sets up an arch distrobox for steam and lutris, it even has one click installers for things like oversteer in the post-install welcome screen, it auto-updates and is generally just quite a nice improvement on based Fedora Kinoite.

Immutable distros ARE used differently, you will mostly use flatpaks for basic apps (Although a lot of people do that anyway), but any traditional packages you want to install will be done in distrobox. You CAN overlay packages to the base system, but it should be seen as a last resort.

Let me know if you have any questions :)

Yes

...People use TOR for normal browsing?

Yes.

Silver blue and Kinoite are the same thing but immutable.

I've used Fedora kinoite for at least a year now, it's pretty good

https://www.protondb.com/app/1091500 https://www.protondb.com/app/1888160

Both are fine.