Display names (e.g. my display name "Juniper (she/her) π«") don't seem to be supported, leaving just usernames. It would be nice if display names were supported. Also, profile pictures would be nice, but I recognize that has been requested separately already.
If you have the time, it appears a user in that issue is hoping for your permission to update a patch fixing this very issue!
I can understand why it is low priority, but consider that it is outside of basic feature parity with Lemmy. In all other apps (that I have tried) as well as web based frontends (again, that I have tried) the display name is used everywhere.
I for one selected my username in light of the fact that I would be able to edit the display name on Lemmy, and I find that including my pronouns (I recognize this is a niche use of the display name feature) is an easy and generally consistent way to limit confusion and frame conversations involving me.