There’s altstore.io and others, and e.g. f-droid for Android. What you want is for those stores to be on equal footing - which I would like as well, but is har

There’s altstore.io and others, and e.g. f-droid for Android. What you want is for those stores to be on equal footing - which I would like as well, but is harder to argue for because alternatives do exist.