The state of Steam on macOS is astonishingly bad

Remember that time Apple approved, then banned Steam Link from the App Store making all that development time and resources a complete waste and then left it like that for a year until EU regulatory antitrust pressures increased to the point where they started approving apps like Steam Link to try to stem some of the pressure?

How about that time where Apple, understandably, dropped support for OpenGL, but it was during a time when Metal was still immature leaving game developers with no good options on MacOS?

Or that time Apple dragged Valve into its' fight with Epic Game Studios by subpoenaing Valve for a wide swath of their sales and operations data pulling Valve into Apple's legal battle while also leaking what was, up until that point, proprietary internal data into the public via the proceedings? Not to mention all the bad press Valve received since they are running a similar 30% store as Apple. Let's also not forget Valve though incredibly rich, is a relatively lightly staffed company which dragged resources they would have liked to use elsewhere into following the court order, which regardless of their efforts exposes their inner workings to a multiple direct competitors and this continued for years.

Valve did support their Mac variants much more actively at one point. Then Apple repeatedly stabbed them in the back and everything has basically been in maintenance mode ever since.