I'll confess that I only tried gpt 3.5 (and the mistral one but it was actually consistantly worse) given that there's no way in the world I'm actually giving openAI any money.
Having said that I don't think it fundamently changes the way it works. Basically I think it's fine as some sort of interactive man/stackoverflow parser. It can reduce frictions of having to read the man yourself, but I do think it could do things a lot better for new user onboarding, as you seem to suggest in the comments that it's one of the useful aspect.
Basically it should drop the whole "intelligent expert" thing and just tell you straight away where it got the info from (and actually link the bloody man pages. At the end of the day the goal is still for you te be able to maintain your own effing system). I should also learn to tell you when it actually doesn't know instead of inventing some plausible answer out of nowhere (but I guess that's a consequence of how those models work, being optimized for plausibility rather than correctness).
As for the quality of the answer, usually it's kind of good to save you from googling how to do simple one liners. For script it actually shat the bed every single time I tried it. In some instances it gave me 3 ways to do slightly different things all in the same loop. In other straight up conflicting code blocks. Maybe that part is better in GPT 4 I don't know.
It also gives you outdated answers without specifying the version of the packages it targets. Which can be really problematic.
Basically where I'm going with this is that if you're coding, or maintaining any server at all, you really should learn how to track the state of your infra (including package versions) and read man pages anyway. If you're just a user, nowadays you don't really have to get your hands in the terminal.
At the end of the day, it can be useful as some sort of interactive meta search engine that you have to double check.
I'm really not getting into the whole "automated garbage that's filling up the internet, including bug reports and pull request" debate. I do think that all things considered, those models are a net negative for the web.
If you find yourself wanting to game on your distro again, layering nvidia drivers ontop of immutable fedora is do-able. If you want a more hands off approach you can use bazzite (https://bazzite.gg/), which has an nvidia compatible version and is just a kinoite-based OSI image with gaming oriented tweaks and extra apps.
You can even just rebase to it if you're already using kinoite (and rebase back to kinoite if you don't like it), no need to reinstall your system. The download page has a one-command exemple on how to do that.