I've been using Linux since before Xwindows existed

Why are you blatantly lying like this? X came out seven years before the Linux kernel was even released. And even then, there wasn't a working system for the Linux kernel when it was released. Keep in mind I said DAILIED Linux for 18 years, I didn't say USED, I've been using Linux for 27 years now. I actually remember a time when Linux was not an operating system that people would use to play games on.

I'm using my time specifically in the community as an example to show that this is not the first time I have heard this. OP supplied evidence in ten very specific games here, there are over 12000 games on protondb that are "playable", not even verified. I have run across myself quite many games that run at half to three quarters the performance that it does on windows, and that is absolutely fine.

Telling people that using Linux will get you a "free performance boost as much as 17%" when it very likely will NOT, will create a lot more angst towards the Linux community than it already is. The elitists are already doing that for us, we don't need more of it.

We should be pushing people towards Linux for digital privacy+security and free software, not cherry picked performance boosts.

Yes, I very well recognize the black magic sourcery of proton and wine, but you are sitting here and trying to tell me that proton is somehow going to make your GPU somehow physically push more calculations per cycles just because it is running Linux. Not even giving me the "mesa drivers" spiel which is also BS, as performance is not the main area that the Foss drivers are better in.

Linux is not going to break the laws of physics buddy, I've already said what I said, boost in CPU bound games, little to no boost in GPU bound games. If you're seeing a boost, it's because you have a CPU bottleneck and you are getting it because of the scheduler.