It depends entirely on the game and yes some games work with EAC on Steamdeck but not on Linux desktop…for some reason.
Ironsight on Steam (before it shut down) didn’t work on Linux for the longest time, The devs eventually enabled EAC through proton for about a year before making it Steamdeck only during the final months the servers were online.
And even using Steamdeck=1 in the launch commands didn’t fix that game for me. >.>







You’ll still only get a very small subset of people willing to even attempt to switch over to Linux in those events.
It isn’t even about disliking change or ‘using what you’re used to’ at this point, since Windows is drastically changing all the time (for the worse) but most people just get used to it as the “new normal” and we’re the weird ones for trying to actually take control of the situation, and look for better alternatives.