I don’t see a problem with warnings though as someone who does side load and use F-droid to install Foss apps.

You even got on the Apple side people thinking side loading on iOS is not something they want, since they think it’s easy to end up with a malware app when there’s plenty of warnings and a function that needs to be enabled on Android.

I don’t see it any differently really than warnings for when installing a program on Windows if it wants admin access at the start. I think Android with the terrible security updates and eol period shorter than iOS devices is hitting a nice balance of warning users of risks of installing unknown apps, but providing the flexibility for people to install whatever they want.

Most users are idiots.