treefit, VR/XR isn't nearly as critical. You are required to own and use a smartphone (with one of the two major OSes) to function in the modern society, while VR is mostly a gimmick. Auto-updates were a solved problem on desktops before mobile app stores were invented.
@grishka @thomasfuchs It is the comparison between macOS and VisionOS, I think visionOS will could replace macOS before replacing iPhones, and on macOS you can download 3rd party apps from outside of the appstore, granted they need to be notarised by apple, but not reviewed by their team.