I exposed it all because I am on a VPS, i don’t know how to configure it otherwise, and I did not think it was a problem because all the seedboxes expose it all.

I don’t want to run Jellyfin/Plex because I am on a VPS with low resources.

Yes, I think so. I have configured it like this

If you use something like Jackett or Prowlarr, no. If you use the web interface, yes, but they don’t verify the email you enter, so you can just type in a random one.