Breadtube if it didn't suck.
Post videos you genuinely enjoy and want to share, duh. Celebrate the diversity of interests shared by chapochatters by posting a deep dive into Venetian kelp farming, I dunno. Also media criticism, bite-sized versions of left-wing theory, all the stuff you expected. But I am curious about that kelp farming thing now that you mentioned it.
Low effort / spam videos might be removed, especially weeb content.
There is a cytube that you can paste videos into and watch with whoever happens to be around. It's open submission unless there's something important to commandeer it with at the time.
A weekly watch party happens every Saturday (Sunday down under), with video nominations Saturday-Monday, voting Monday-Thursday. See the pin for whatever stage it's currently in.
You can find the original and others in the audiobooks section of foreignlanguages.press, and the full document in textual formats elsewhere on the website.
If you want to play this YouTube video in a podcast-like manner (in the background on mobile), you can do this for free via NewPipe for Android. To install a genuine copy of NewPipe, which is free and open-source, (there are many malware-infested copies on the Google Play Store), download it directly from the project website or via F-Droid.