[benttoothpaste]

It is partly a cultural problem. For whatever reason, malware-like behavior became normalized and expected in proprietary software. So in addition to providing “useful” functionality the software often has hidden “dark” side, like tracking/stealing information, telemetry, etc. Such behavior used to be reputation destroying in the past but it is expected today.

Some operating systems try to limit the amount of such malware-like things software can do while still allowing the useful functionality. Currently iOS seems to be the best popular option to run proprietary “apps” due to its easy to use permission model and good defaults.