Jerboa kinda sucks and Lemmur straight up doesn't let you sign in.
A lot of communities are unfortunately missing, the Lemmy devs should do a better job of advertising the platform to Reddit expats so we can have more content.
I'm hoping some third party Reddit apps rewrite themselves to support a Lemmy backend.
Jerboa seems pretty good as an app in is infancy thrown together quickly to address the sudden need. It does lack the maturity and stone features Reddit 3rd party apps had (I was partial to Boost and Relay myself) but it's pretty usable and given time I think it'll get even better. Also add Lemmy and Kbin reach critical mass we may see more apps soon.
Indeed, considering how young it is, it's a good start.
Definitely needs a way to look at inbox comments in the context of the thread, right now I need to go to the thread and scroll to find my comment and its reply.
I think that exists already, click the little link looking icon to the right of downvote when looking at the reply in inbox and it permalink to the reply.