Comment by pjmlp

> Not all these thousands of games running on the Deck have binaries that run natively on Linux. Pivotal to the success of the Deck is Proton, a middle-layer compatibility software, that makes this (mostly) seamless emulation possible. Nonetheless, the greater the adoption of Decks, the likelier we are to normalize prioritizing game-builds for Linux.

This exactly the problem with Steam Deck, and will last while Microsoft decides tacking Proton isn't high on priority list for Microsoft Games/XBox division issues to sort out.