The same. e.g. the first community I tried - [email protected] - has as its first post a video from a non-YouTube source, https://lostpod.space/w/qqcZQw6bN1EC8DFp55ciSF, and its preview is the same width. That community seems not federated with your feddit.org, but you can see on PieFed.Social in both List and Tile views the preview is quite wide. This is on a desktop though - I don’t know how it would look in any particular app, and it might look different in a mobile browser but in Firefox on Android it likewise is presented in a very wide view
The same. e.g. the first community I tried - [email protected] - has as its first post a video from a non-YouTube source, https://lostpod.space/w/qqcZQw6bN1EC8DFp55ciSF, and its preview is the same width. That community seems not federated with your feddit.org, but you can see on PieFed.Social in both List and Tile views the preview is quite wide. This is on a desktop though - I don’t know how it would look in any particular app,
and it might look different in a mobile browserbut in Firefox on Android it likewise is presented in a very wide viewStill looks fine to me … the thumbnails are just the same aspect ratio as the videos, which is what I’d expect. Does it look different on your system?