A lot of older PC games can run just fine on modern phone hardware. I’d buy a SteamOS version of a phone that has some modular or built-in set of buttons and analog sticks. I don’t know how the app ecosystem would work for sensitive things like banking but it’s mostly a minor issue for me.
Yeah this is the important bit to me. Valve does good work and contributes to FOSS, sure, but I’m not going to blindly follow everything they do. Right now the Linux phone space just flat out isn’t viable for daily drivers. If Valve are the first ones to really address this, cool! But I’m not going to put them on a pedestal over any other options.