[izerik]

You can opt out of them being available on the Mac.

“All iPhone apps and iPad apps that run on Apple silicon Macs will be published automatically on the Mac App Store, unless you edit their availability. Edit Availability | Learn More”

[Razengan]

In that case it's yet another case of some developers choosing to screw users over by crippling the features that Apple wanted to be available for everyone by default :(

(Fuck Google in particular for actively hindering iOS Picture-in-Picture for years)