That was quick.

The best advertiser for Linux is Microsoft.

Mesa comes as separate flatpaks which is hidden in the GUI, and is automatically install when you install a flatpak. The system can have multiple versions of the driver installed. When Steam is ready to use a newer Mesa version, it will do it automatically.

Mangohud, on the other hand, is a flatpak you need to install manually via the command line. You should follow the instruction on their Github page for that.

P.S: In case you like a GUI for things. You should install Flatseal, which provide a GUI for configuring flatpaks.

Apparently, the CAD software Ondsel is also not compatible with the mesa’s implementation; and it would just crash right after the boot.

This is the second times Apple got caught red-handed for stealing, and there is no doubt there were many more cases where they got away with it.