> Valve really likes to support everything I believe Valve is still sour from Apple discontinuing 32 bits x86 support and killing a big part of the Steam game

> Valve really likes to support everything I believe Valve is still sour from Apple discontinuing 32 bits x86 support and killing a big part of the Steam game catalog with macOS Catalina. It's not impossible to port Portal 2 to later macOS versions, there's a port for the Nintendo Switch so it runs fine on ARM.