That’s not a money reason or a store related reason. That’s really on the developer. Mac is a different architecture. Often times Mac versions require extra development.
Linux is gaining more ground not because of a store or the developers themselves, but because Proton makes the windows versions of games run on Linux.
My argument was about exclusivity deals, not technical compatibility.
Exactly. Win customers over by providing a better experience that makes people want to use your platform over a competitor, not because they’re forced to