Opt out of betas, restart steam! 11GB download, lol.
If you buy it on Steam, you’d be able to play it through Proton. I assume Proton is available on Macs, but I don’t actually know; please check and don’t hold me accountable.
Apple did take Wine (well, CrossOver, but that’s wine-based), adapted it for Macs, didn’t create a merge request for a single line of code, and ended up only advertising the new tool as a demo for how well games run on their hardware to incentivize ports, with no intent of using it as a compatibility layer for players.