Comments RSS or browsing, and modlog filters are really the only main UI things that stand out to me as jank.

The apps suck compared to the normal UI in browser but I like downloading more buttons for my phone and smashing that share button. Fedorager can handle links decently similar to the Mastodon/Misskey lookup that works on most URLs from other instances. Apart from rapid fire posting that is all about all they are good for. I guess hiding read posts is a lot easier in apps. It works like read on scroll for RSS stuff. Also Eternity saves your place in the timeline like most Mastodon and Misskey apps do.