Another bump for antennapod, haven't found a better podcast app yet and I have tried a few just to see.

Also Delta Chat, I have recently been trying it out through the Arcane Chat app (same dev, Arcane seems to be his feature testing grounds) and I love it so far. It's easy enough to use I was able to get my mom on it, can't say that for XMPP or Matrix! I'm sure it's got its own problems, no forward secrecy, metadata (which to my knowledge every messaging app has by virtue of how "messages" work, even snail mail, it has to know who to go to), but then again Delta wasn't started as an Amdocs (mossad associated company that infiltrated US telcom) product like the Matrix Foundation, so I trust it more for now. And Delta/Arcane uses so much less battery than Conversations does when running GrapheneOS, like by a LOT. I just checked, Conversations has eaten 20% of my charge since full, Arcane Chat has used less than 1% despite having the same screen/background times and same number of messages sent/received on both.