1. being able to scrub through videos and gifs would be a nice touch

2. adding a way to close a gif once you open it besides swiping out of it, an X at the top somewhere

3. tapping to make the Save/Share UI on a picture go away

4. being able to swipe from the left on your home feed to open your subscribed communities

5. being able to swipe from the left on your home feed to be able to go back to where you were in the last post you had open.

Just some suggestions, all are definitely from Apollo but I think they would make for some nice QoL features