Nextcloud is a mess. It tries to do everything. The only reason I keep it in production is because it's a hustle to transition my files and DAVx info elsewhere.

The http upload is miserable, it's slow, it fails with no message, it fails to start, it hangs. When uploading duplicate files the popup is confusing. The UI is slow, the addons break on every update. The gallery is very bad, now we use immich.