Not sure how much traction this will get, but I think it's worth a shot.
Just list the things that you think are missing.
Mobile and Desktop - find all my posts is essential.
Mobile - there's no email icon unless I go looking to see if anyone has sent me an email.
Mobile - there should be a better way to view followed threads other than using the "Bookmarks" option. I currently have 368 bookmark options that apparently carried over. Most of them are dead for years.
Both - likes is not a good replacement for thanks.