Doesn’t Fortnite use Easy Anti-Cheat? Which is also a kernel level anti-cheat.

Something I never fully understood with file versioning is on which side to apply it. The source or the receiving end?

Worth checking out Mealie, too. Can’t say how it compares to Tandoor or Kitchenowl but I’ve been happy with Mealie for years now.

In Qbittorrent you can tell it to not download certain files. So you can tell it to ignore anything with *arj, for example.

I’ve had this happen with people pretending to be certain groups and making the file a .lnk (a link to a website, I assume). Sonarr will still send the file to Qbittorrent, but it won’t get downloaded at all.