Three that come to mind immediately:

- When I try to tap into a reply thread under a long-form read, the app crashes.

- When replying in threads on regular kind-1 posts, the reply only tags the person you’re directly replying to instead of everyone in that thread.

- I regularly find some notifications in other apps like Nostur that I never see in Primal. Usually it’s a reply or when one of my notes has been quoted. But I do see notifications for some replies and quotes in Primal. So I’m not sure why some show up and some don’t in Primal.