For me, having control over my own system outweighs this. Might be naive though. Plus, I want to support these kind of initiatives.

Iirc, ProtonDB has separate sections for steamdeck and linux with Proton in general. Highly worth checking out if buying a new game on either system.

Honestly, I am running GrapheneOS (o7 to the devs, btw) until my Pixel 6a dies, and then I am switching to Jolla + SailfishOS. There is nothing more maddening to me than seeing Microslop and Google slowly filling their ecosystem with irremovable invasive bloatware and basically blocking a free market.