May be… the OP means mobile apps? Apps are easier to instrument with massive data mining and tracking capabilities and the core distributor is also google for at least the Android ecosystem. If you try to sideload or provide OSS apps, generic users will be frightened by google’s mafia banner warnings … “I see you trying to install an app from outside playstore, would be a shame if it had infinite spy and tracking malware, we can’t protect you unless you come over here and only use our apps from playstore…”