I don’t use multiple users or ldap, but miniflux supports many users. And based on this pull request it seems to have the necessary interface for ldap?
https://github.com/miniflux/v2/pull/570
I enjoy and recommend miniflux for rss reading. I have used it for a long time now together with flux news android app. I also use save integration with wallabag sometimes.
if i remember correctly, i just replaced gitea with forgejo for image: in my docker-compose, and it just worked
it was a couple of versions back, so i don’t know if that still works