Microsoft also implemented the Wayland specification and it did zilch for adoption or growth of wayland. Let me put it another way, Chromebooks also adopted upstart and that has not had an impact on upstart use or adoption in the broader linux ecosystem.
Its more likely they’re gonna use work done for desktop linux with minimal if any contribution backwards to things we care about.
Its kind of incredible how deep funnyplaying is into GB(A) replacement parts that its beginning to actually manufacture its own gameboys outright.