IMO this problem calls for a technical solution, not an organizational one. It should be required, by law, for platforms this widespread to allow installing ap

IMO this problem calls for a technical solution, not an organizational one. It should be required, by law, for platforms this widespread to allow installing apps without platform owner involvement. Let there be many scary warnings like there actually are on Android when you install an apk file, but it has to be possible. It's the only way. Adding more bureaucracy on top of existing bureaucracy won't help much because you'll still have to play by the platform owners' arbitrary nonsense rules.