I assumed you knew I was talking about the DXVK dev given that he’s literally an employee of Valve, as you mentioned. Either way, I’ll now be more detailed with my comment.

Of course all the contributors to Wine deserve credit too, and I do have an active Crossover license, but Valve are the ones who explicitly made a push for gaming on Linux and focused specifically on the gaming aspect. Wine covers everything, not just gaming, Proton is specifically for gaming. It’s doubly true given that they want to sell more units of the Steam Deck so they can get more people into the Linux and Valve ecosystem. Not that you don’t know that, but it’s worth pointing out regardless.

I’ve been daily driving Linux since before Proton was even a thing, and the difference between gaming then versus now is not even comparable, it is infinitely better now and keeps improving. I no longer have to hope that a new game will work or that I can somehow manage to get the right set of libraries and flags to get it to run, if a new game comes out and it doesn’t have a kernel-level anti-cheat, I can expect that it will work out of the box just fine without any tweaking because I have seen this happen multiple times now. I’ve even started getting into Mac gaming to get some of that tweaking and configuring thrill back that I used to get from Linux gaming, having to tweak and configure things to get them to work properly or to work even better.