Steam

Obviously his death will trigger a worldwide AR Easter egg hunt, where the Steam user worthy enough to find the three keys first will become the new Gaben and Master Of Steam.

I think I have enough to worry about already without worrying about what ifs.

For sure, valid to fear the enshittification of steam. But they aren't killing proton. Maybe ignoring proton at worst. But Steam has profit motivations for not being reliant on Windows, which has actively been trying to supplant them with the Windows Store for years.

As another separate, profit-motivated company, with a gaming division and a lot to gain from eating Steam's lunch, Microsoft is not Steam's friend. Proton is a critical bargaining tool for them, and not having to include windows licenses for devices like the Steam Deck helps their costs too.

Who'd have thought not actually owning the games you purchase was a bad idea?

Good news. Unreal Engine 4 is usable on Linux and works pretty well too.
Learn some C++, get some ppl and make good games.

Also, GoG means old games don't die. (well at least the non DRM ones)