I mocked up a better workflow for video in a mastodon mobile app. I'm not a developer, just a mobile user who wants to stay in their fedi app of choice (currently Moshidon) while enjoying multimedia content and not get booted out to a web browser every time I want to watch a video or listen to a podcast. I still have no idea how difficult or feasible it is to actually implement this concept.
I think it's very important for fediverse mobile apps to support audio and video streaming to integrate with platforms like Peertube, Castopod, Bandwagon (once that gets going), etc.
Remember to be nice to Moshidon devs (and also other free application devs). AFAIK, the lead developer for moshidon is a teenager, they could do with minimal rant in the void. Cheers!