Recent big multiplayer games:
Marathon, no Linux support.
Call of Duty, no Linux support.
Battlefield 6, no Linux support.
Valorant, no Linux support.
The Finals works and is great, but I'd be mindful of what games I'm giving up if considering a full switch
Those all require kernel level anticheat.
...and yet out of 280 multiplayer games in my library 200 are marked as Deck Verified or Playable (and most of the rest has no rating available). Also, looks like all of your examples are from a single particular niche.