It doesn't have a native app - it's just a web page. If the browser supports it, background playback might work. Alternatively you can try zap.stream/videos which shows them as well (in a different player). 

 The brave browser will actually allow you play your videos in the background while your screen is off.  Just open youtube in brave and play the video, but make sure you full screen the video then lock your screen and you should be golden.

You can do this with any video website as well, not just youtube of course. 

 You can use the Zapstream PWA. It plays on my phone with the screen locked. Zapstream is using the same event as flare. Hence the content from flare displays on zapstream and vice versa. 

 That's not ideal because the video kind also needs description, thumbnail and video metadata (e.g. duration). It's would be better to have apps post these kinds natively. 

 Thumbnail and metadata like duration could easily be incorporated with the bot

Description is a bit trickier though, I agree

Only thing that comes to mind is to have an AI transcribe the content and then summarize and title it, but would be costly

Would only be able to rely on zaps to get value back so maybe not the best idea

Just thought I’d throw it out there because people post a bunch of videos as Kind 1s that would be great to build the Flare repository with, but very few people will do the work to post in both areas