Proton is the compatibility layer that allows Seam games developed for Windows to run under Linux. Some games, unfortunately, may have problems that cause you to be left out.
I have other thoughts, but these are the most objective ones:
The theme was integrated with all applications I tried and I didn’t spot any problems with it. (I’d tell you I liked it, but that would be subjective)
Installing via Pamac required knowing what source (repos, AUR, et cetera) you were installing from or to try multiple.
My Brother wifi printer couldn’t connect and I didn’t find a guide to resolve it.
I couldn’t get audio to work correctly on my Thinkpad X1 Carbon 9th Gen.
The forums seemed to be active.
I ran it for a week in a VM without breaking anything. Didn’t run for any length of time on bare metal due to the printer and sound issues.
Compared to Fedora and EndeavorOS:
Default GNOME theming, of course also through.
GNOME Store will show you all available sources when you search for the package on Fedora. For EndeavorOS I have to search two places on archlinux.org and flathub.
My printer worked with Fedora out of the box. For EndeavorOS I found a detailed guide they put together.
No audio issues on either.
Fedora also has a large forum. The EndeavorOS forum seems to have fewer users.
I ran Fedora on my laptop for 6 months. When I upgraded between versions, I ended up with two versions of some applications like “Terminal” and “GNOME Terminal,” which was confusing. No breakages.
I’ve been running EndeavorOS for 14 months. I broke GRUB when everyone else on Arch and EndeavorOS did. I still had the live USB, and EndeavorOS provided instructions on how to fix it, although it was written for Ext4 and I had to make some educated guesses since I use BTRFS. I was successful and that was my only breakage.
Since you have LAN parties in mind, be sure to check this list to know what games are (or are not) well supported by Proton under Linux.
https://www.protondb.com/
Proton is the compatibility layer that allows Seam games developed for Windows to run under Linux. Some games, unfortunately, may have problems that cause you to be left out.