Earlier quoted context omitted.
> Steam Deck is Valve opening up an alternative to Microsoft land. This seems to put the writing on the wall for the Steam Deck though, right? How many people are really going to care about a Valve system that can't run any of the popular games from the MS catalog? I preordered the Steam Deck and plan to follow through with the purchase, but things look pretty dismal for Valve at this juncture. It seems like they're…
Why wouldn't it be able to? With the Proton compatibility layer almost all Windows-only games should run on it. And worst case scenario, one can dual boit Windows if Microsoft decide to be really aggressive vis à vis regulators and block their games from running on Proton.
MS now has a truly huge library, and Valve extracting a portion of every sale on Steam isn't something that's likely to make them happy. They now have so many games that they can use DRM to force users into their own ecosystem (i.e. Windows 11/XBox) to play them.
You could say, correctly, that MS's previous storefronts have not been a great success, but with such a huge catalogue they can just pull the users wherever they want them. There's no incentive for them to allow a competitor to run their games.
Proton is only a solution for as long as MS allows it, and I don't see any incentive for them to do so at this point.
Maybe things move slowly and the Steam Deck itself can still deliver these titles before this happens, but the Valve "ecosystem" as such seems to have really poor prospects.