I do think the above poster hasn't made it clear the experience they're speaking to. A lot of "anti" sentiment I see is based on things that aren't really true anymore. If all were informed and were giving their considered opinion that despite recent advances they still don't foresee a large gain in marketshare then that's fair enough. I think my main issue is with uniformed generalisations being stated as if fact backed up by recent and relevant experience.
Having said that I do agree with your post, so please note that my criticisms don't apply to you!
The "news" is that in the last 5 years it has gone from "absolutely not viable for gaming" to "good enough for a lot of people".
OS/2 was also a great platform for games by that measure, thanks Win-OS/2.
Same applies to GNU/Linux, hence Windows continues to thrive, while the 1% of the desktop folks get to taste Windows games with an ABI emulation layer.
Linux is mostly not being used because people don't have all the software they need and translation layers solve that.
We're entering a different space in desktop OS usage. Windows is changing the desktop metaphor to be more similar to macOS and mobile computing is being used by an increasing number of people as a daily driver.
In short, I don't think ABI emulation layers are the reason Linux is only at 1%. Indeed it was at 1% before Proton was released.
Markets don't optimize for efficiency in computing.