Yeah, I was part of those arguments too. In a perfect world Linux would have enough market share to warrant native ports, but Proton getting Wine one-click integrated into Steam and easily targetable is a more realistic bridge to that scenario than holding out on principle. As it is Linux gaming is in the best shape it's ever been in thanks to Proton.

I also think the argument held more weight 20 years ago, before we started packaging up end user apps in giant self-contained images regularly.