I mean, I'm not naive to think valve does anything for anything other than money and self preservation. That doesn't mean I (and the overall linux community as a whole) don't greatly benefit from it. I want to incentivize their actions which benefit me. I love that I have been able to not boot into Windows for close to a decade because of proton, so I buy from them. I hate that GOG for all their drm free policy don't support linux, and that I have to jump through hoops to get their games working on linux (which is again made easier because of valve's proton), so I don't buy from them.

I agree GOG and Valve have different objectives. GOG's objective is to provide drm free games, where as Valve's objective is to make linux a viable gaming platform so they can stay independent of Microsoft. My objective aligns with Valve, so they get my money.