I mean in terms of market here, for games (largest current use case for Wine / proton). Its not really a market. I think the investment for linux over windows is for steam to try and push people away from windows so as to reduce the competition for Xbox Game Pass. In the most recent report for steam, linux users are like 2-3% of the total share. I'm not sure that "edge lords" pushing the market, really factors into valve's decision. If Xbox Game Pass goes under, then I think steam will likely reduce its investment in proton.
Just my take though, I get your point that people spreading this idea and encouraging it have a place and at least its not negative. I just don't think that they really are market movers.
Hey, but put it differently, 3% is every 30th person, so technically, they can brag about how cool and easy Linux is to their friends, who’d install it too. So while 3% sounds like a rounding error, they may shift the pretty quickly, and suddenly that’s 30% one day.