You really don’t need Apple to support 32Bit x86 macOS games when it’s not much more overhead to run windows x86 games (which is easily the better library to spend time Optimizing for).
from the point of the dev - work done on the port will rot very soon, return of investment is really low. Also, the studio may not exist at all by time changes will be necessary - as fast as few days after public release nowadays :(
Some dev support is being retained but you shouldn't consider that "will be retained". It is going away.
Also who cares if the wine exe itself can run as x86? Ideally you want something that resembles windows chpe where the loader is native but works with the translator to bridge translated game code to native sys/lib calls.