I don't think I've gotten any kind of screen notice either, or are you talking about after opening rhe app? Is it even a thing to show up like when you get a text/email? There's also an option in there to send notices to email if that's the kind of thing you want.
I keep getting network errors. I'd actually given up assuming I just couldn't post at all. Deleting is turning out to be just as painful a process...
I've never got a notification from Jerboa in my life. The number appears on the envelope on the bottom row, but I never get any sort of alert. Lemmy is super quiet so I don't check it very often (my home feed gets one post and zero comments on an average day), and once discovered responses to me that were a day old.