Yeah, it's unfortunately only viable if you're near one of their data centers – and even then, some of their international third-party partners have crappy graphics cards and networks. In the US, though, it is an
amazing experience, more like streaming in 4K (which it can do) with minimal lag. Even first-person shooters are perfectly playable, as long as you're not trying to go pro. No compression artifacts or visible degradation at all for me.
> But Steam + Proton is literally zero management.
Absolutely. I had a Steam Deck for a few weeks* and that experience was amazing. Valve did a really really good job there. Unfortunately that's just not how it is in the Mac world :( We have Whisky and Crossover, which are much much harder to use.
(* The Steam Deck is a great piece of kit. I eventually sold it only because I already had a Logitech GCloud, https://www.logitechg.com/en-us/products/cloud-gaming/cloud-..., which does the same thing except streamed from GFN and with a bigger/better display than the Deck.)