Nextcloud for me too, would break because of updates requiring manual DB updates sometimes, apps would randomly stop working after updating too, or the 2 times it caused total data loss on all my synced devices and the server itself which required a full restore from backups.
After getting rid of it and switching to Syncthing + Filebrowser + SFTPGo for WebDAV I haven’t really had anything break since then (about a year now). Stuff also runs much faster, NC was extremely slow even on good hardware with all their recommended settings for performance.