I've been here a week ago already asking if Arch would be fine for a laptop used for university, as stability is a notable factor in that and I'm already using EndeavourOS at home, but now I'm curious about something else too - what about Arch vs NixOS?

I heard that NixOS is pretty solid, as due to the one file for your entire system format you can both copy and restore your system easily whenever, apart from your normal files and application configurations of course.

Are there any major downsides to NixOS compared to Arch apart from the Arch Wiki being a bit less relevant? I'd also lose access to the AUR, but admittedly I don't think I've ever actually needed it for anything, it's just nice to have. Also, since NixOS has both rolling release and static release and you can mix and match if you wanna get packages from unstable or not, I'm not losing Arch's bleeding edge, which is nice.

I am currently using Windows on an older HP Laptop, which I intend to replace with a Framework 16 by next summer, but my Desktop PC at home has been running EndeavourOS, my first ever Linux distro, since last summer, so I have some Arch-based experience.

As a learning experience I'd like to install raw Arch, but I'm wondering if it makes sense as a primary OS on something that should be a stable system, since I intend to use the laptop for university. I am planning on using btrfs and timeshift, so it shouldn't break too horribly, even if something goes wrong (and I don't wanna jinx it, but so far my EndeavourOS pc has been entirely fine too, so I didn't even run into such an issue yet), but depending on who you ask Arch is either the most stable distro they've ever used or bricked their pc ten seconds into the install process.

So now I'm curious on if you all think this is a stupid idea or if it should be fine. Should I try installing Arch and then for actual use replace it with another distro like Debian LTS, NixOS or something like Mint on a machine which fulfills a more critical role than my PC at home, or should I be alright rolling with Arch on my uni laptop?

As a side note, what's your take on using Arch vs EndeavourOS? It's roughly the same fundamentally, so is there any point in using Arch apart from the learning experience and being able to say "I use arch btw"? My reasoning for actually wanting to use it and not just wanting to set it up for the learning experience and then switching off to EOS or something entirely different is "I think it's neat", which is hardly a good reason long-term.