I’ve been running nextcloud since before it was nextcloud. Was owncloud then moved to next cloud.
Another user put it best. It always feels 75% complete. Sync isn’t fast, gives errors that self correct when restarting the all. Most plugins are even more janky or feel super barren.
I wanted to like it so much but I stopped being able to trust most plugins which meant I had dedicated apps for those things and used nextcloud only for file sync.
If you only want file sync then seafile is vastly superior so that’s what I now have.