I wouldn't go that far, I would suggest that any game studio interested in the next 10 years of PC gaming will need to at least start doing testing through Proton/Wine to ensure there's no clear/prominent bugs. It doesn't take a lot of vocal users to elevate or kill a game, and Linux usage has passed that mark at this point... Generally seismic shifts in politics are around the 8% mark in terms of overall population, and Linux usage in the Steam survey is close to 4% and some other metrics have Linux usage over 6%.

Literally half the gaming/hardware focused channels I watch have run at least one, if not several Linux Gaming videos and tests this past year... mostly in the past 4 months and mostly praising the state of Linux gaming. It's not going away.