FIX* Had to install PunkBuster manually from their website to fix getting kicked every couple minutes. How: Use the .exe from their website with Proton Tricks. Link: https://www.evenbalance.com/downloads.php

FIX* Fix for Proton tricks not running the exe for me:

flatpak remote-add --if-not-exists flathub-beta https://flathub.org/beta-repo/flathub-beta.flatpakrepo

flatpak install flathub-beta com.github.Matoking.protontricks
https://www.reddit.com/r/SteamDeck/comments/1drfm1t/comment/ljhakgv/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button

Source for Proton tricks fix: https://www.reddit.com/r/SteamDeck/comments/1drfm1t/comment/ljhakgv/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button

TLDR: I use Proton experimental as default and it worked fine, but PB is broken by default, and Proton tricks didn't want to work with my reinstall of PB

The only issue is that the game's version of PunkBuster that gets installed by default is broken. This is a game issue, and not a Linux issue.