Earlier quoted context omitted.
I'm betting that one would have to opt-in to use those stores in the first place.
Until Facebook is only distributed through their own store that doesn’t require app tracking transparency. Or Teams, or slack, …
https://news.ycombinator.com/item?id=30280457
One should note that Meta could create their own Android third party store right now, like Amazon has (pretty much only to support their Kindle Fire devices), yet they haven't had any interest in doing so. One could claim that's because Android users don't pay as much for apps as iOS users do, but that's still a lot of users worldwide, and a lot of data that could be tracked. Yet they don't bother to.