I mean you can still use them, it’s just more finicky

If you want to operate in a country, you have to abide by their laws.

Apollo has 25m downloads, I can’t imagine that the various Android 3rd party apps are any lower than that in total, if not individually.

Officially they make up a small amount of traffic, but amongst power users who both create and comment significantly is much more commonly done through 3rd party apps.