THE FINALS has a repeating issue where major updates will break it in some way, with the latest update causing the game on Desktop Linux / Steam Deck to freeze a few minutes into a match.
Read the full article here: https://www.gamingonlinux.com/2025/05/the-finals-broke-again-on-linux-desktop-steam-deck-valve-updated-proton-hotfix-to-fix-it/