Dont do Plex! Closed source that leaks what you upload to Plex. And they're owned by big media - so only time they start suing users for files they know they have.

Instead, check out FLOSS server Jellyfin!

That’s alarming. Do you have any sources where I can learn more about this?

What does "uploading" have to do with using Plex? As far as I was aware, My media is sitting less than a meter from me right now. Does Plex upload my content to a server without asking or something?

Plex has a lot of dubious partnerships with companies like Lionsgate and Kliener Perkins but is not owned by Big Media