I and many friends have had a wide range of problems with Nextcloud. It is the first thing people tend to self-host, and also the most component to migrate off from. Calendar, photo upload, share links, etc.
Remember the thing Nextcloud forked from and was ‘superior’ to? Enter ownCloud. While Nextcloud was sleeping, they rewrote the whole thing in Go and Vue while targeting Kubernetes. It addresses my Nextcloud pain points in the docs. The downside: it has a weird name.
@wendell mentioned in https://www.youtube.com/watch?v=LMmquUxQqis that Nextcloud has scalability problems, and having recently learned about the existence of OCIS myself, I thought I’d share.