One thing that keeps me on Sync for Lemmy is the handling of videos/gifs and how it is mostly the same as images.

Things I am looking for is:

• Handle must videos in-app with the building player
• Ability to zoom in on videos
• Videos control that are on the bottom of the player and not overlayed on the video itself taking up most of the screen
• Video control and pause also that does not darken the video.l
• Show the video playing or a still of the video in the post card instead of just a link.l
• Wide support for different sites
• Support for redgifs

Also it is a plus if they support piefed account authentication, but it is not a deal breaker. I guess I can create another account if needed.

I think I tried all the Lemmy clients and I think none have the zoom stuff. That is the most important. I may have missed some config options, and I hope I did because it is really sad that with Sync but rotting and no app works quite as well as Sync for me.