I've distrohopped a bit over the years, and used a lot of Windows, but yeah I am running Bazzite right now. Popped into their Discord to scan for info, but Discord search is really really bad.
I like the idea of an immutable distro. It's a bit of a pain to have to run a container for some things, but there's a certain cleanliness to it that I appreciate. I like Fedora for being a good balance of bleeding edge and stable, and KDE is just a nice DE.
One day I might lose my mind enough to get into NixOS, but I'm not that far gone yet.
Re: permissions, Mr. Frenchies, they're something I have to deal with when working with servers, but don't seem to come up much in regular desktop use. Though I can understand the pain of needing to mark things executable, finding the right octet value, and wondering what a "sticky bit" is.