You can’t easilyy switch between different inages like on an atomic fedora system.
Do you have to switch now? No.
Nothing, at all.
Some things you can’t do easily in Mint, like create snapshots automatically and boot into them when something breaks.
But it’s all Linux and freely available software under the hood, and the lines between configuration, customization and forking your distro are blurry.
I mean…
Steam? Maybe? I dunno, I don’t game but the Steam kids seem to prefer Arch. I’m sure they have their reasons.
Practically? Probably nothing terribly significant.
I’m a complete noob in the games department. Btw, I see that you don’t use Arch.
Reasons are usually just newest kernel/mesa/etc. Most of the time the difference is very small, and often inconsequential. However, every now and again there is a major development that might make it worth it (IE: The graphics pipeline that all but made dxvk-async obsolete)
In my experience, not much, but I’m a marginally functional newbie. Mint manages things for you fairly nicely and has been the best, it just works with out messing with much/anything. (At least for my hardware)
I managed to get gnome working smoothly on mint and have been happy with it. I started and returned here since I last ditched windows as a native OS.
The only thing that has made me consider distro hopping from mint is AUR on arch and gnome, though I’ve been successful so far.
Part of trying the distros that are more advanced and give you more explicit control and configuration is the sense of accomplishment and it makes you figure out how and why things work the way they do. It holistically builds your velocity in your understanding of Linux. (Or gnu whatever that nuance is).
If your machine has enough resources it is super easy to host VMs of anything you want to try. You can try them all, and it won’t cost you anything but time!
If you feel like you need/want software from AUR you should check out Distrobox. It can run any distro on top of your installation using Docker under the hood, but it tightly integrates into your system so with little effort you can run AUR programs from your launcher as if they were natively installed on your Mint.
Brag about being an Arch user (BTW.)
