It's not Linux's job to run software designed for another OS. It's great that it sometimes does (thanks to wine/proton), but as a litmus test it seems a little odd.
I'm with that guy. It's exceptionally easy to run Linux full time these days for anyone who wants to. (Have been doing so since 2007, and it was already easier then than it was for the trailblazers.) It requires almost no thought to ensure the hardware I buy will be fully supported.
I don't care in the least if someone chooses something else to run on their computer, and I'm years past the point where I can even understand why I'm supposed to.