Linux

Then you have NixOS, which is declarative, and fairly immutable.

You don't have to reboot to make changes, but you can't just run unlinked binaries either.

You can't do things like edit your hosts table or modify the FS for cron jobs. The application store is unwritable, but you can sync new apps into it .

You have to make changes to the config file and run a rebuild as root.

I'm much more comfortable trying things that I'm not sure will (or expect not to) work. I can just blast the toolbox or whatever afterwards.

Compare to some of my earlier forays into Linux, where I'd do some nonsense and then attempts to remove said nonsense would break some other load-bearing part of the OS.

Bazzite is great. I was using Nobara before it, and Solus before that and Bazzite has been the best experience I ever had on Linux, I don't plan on changing distros as long as it remains a thing.

I don't mind flatpaks in a pinch, but having to use them for literally every app on my computer is an unreasonable amount of bloat.

I have investigated the idea and came to the conclusion that immutable distros are essentially a research project. They attempt to advance the state-of-art a slight bit but the cost is currently too great.

Perhaps somebody will some day create something that's worth switching to. But I don't think that has happened yet, or is happening with any of the current distros. Silverblue might become that with enough polish, but I feel that to get that amount of polish, they would have to make Silverblue the 1st class citizen, i.e. the default install of Fedora.

I am a huge fan of immutable distributions, not for my personal daily driver but for secondary systems like my living room/home theater PC.