I hoped that the recent 64-bit TF2 update would mean support would return to Macs, instead Valve explicitly removed support for TF2 on macOS :( The only Valve

I hoped that the recent 64-bit TF2 update would mean support would return to Macs, instead Valve explicitly removed support for TF2 on macOS :( The only Valve game with official macOS support right now is Dota 2, which is x86-64. Once Rosetta disappears (whenever that is), there won't be any official Valve games available for modern macOS.