That list won’t show which instances have block the home instance. The blocked list lists only the instances the home instance has blocked, not the other way around.

The beta app should work for the next three months. The developers will submit the app again to TestFlight. You can then join the new beta, or wait for the App Store version, whenever that happens. If you are happy with the beta you have, consider to let others join the new beta. For example, blind users might want to get the new beta because it will be the only Lemmy client that supports VoiceOver.

They try to submit the app to App Store 1st of July, and after that it will take from few days to weeks for it to be accepted to App Store.

r/Blind mods created their own Lemmy instance at https://rblind.com/. They use some beta features and their own modifications to make it more accessible.