I've been using this to play TF2 Classic on my M3 MBP and it works perfectly. I had some freezing-while-sound-skips-endlessly issues when using the voice chat hotkey, but that was resolved using WineTricks (built in to Whisky UI) to install `dsound`.

Now's a great time to start playing — The TF2C 2.2 “Double Down Update” comes out today!! https://tf2classic.com/double_down/

e: And I also had to disable macOS's default keyboard layout switching shortcuts (which I never use anyway) since I kept triggering it while crouch-jumping lol

e 2: https://news.ycombinator.com/item?id=42816545