Exactly. I don’t know if the AIO image was used and how that all works (I stay away from that and the snap which is just an abomination) but no one should try to selfhost anything for prod unless they know exactly how it works. That and have a staging env. If you’re not up to the task then just pay for some commercial hosting (even if it’s just Nextcloud that is hosted elsewhere.)
I’ve run the nextcloud image (just docker.io/nextcloud IIRC) pinned for years with k8s and it’s durable and fine. It stays put and I just take the time to update my testing instance, make sure it all works with some cheap smoke tests, then upgrade prod.
I distinctly remember yum/dnf should be using a loop. Forget why but it’s recommended. Here’s a snippet from my playbook. Simply make the vars as you need and run.