I use Photoprism. You create an Album, share a link and done. Works well with my Normie Friends

But if you already use Immich I would use this

A Textbook

NewPipe or Patched YouTube App using ReVanced Manager

You can read more Here

If you try to rate-limit them, they’ll just switch to other IPs all the time. If you try to block them by User Agent string, they’ll just switch to a non-bot UA string (no, really). This is literally a DDoS on the entire internet.

https://pod.geraspora.de/posts/17342163

They just Fake User Agents If you Block them