I have to say, that sort of move would make no sense, just look at how the Macs play games through crossover. A windows game gets pumped through rosetta 2, to translate/emulate the x86 code, then through Wine. You're dealing with two layers of abstraction on an application (game) that is very much performance sensitive.Too bad they couldn't make it ARM-based.
Games on the steam deck/steam machine/linux has a major knock where games with anti-cheat are not compatible, throwing in the ARM to X86 translation would be a very bad move imo