There’s a lot of doorbell camera footage on the Internet, so it’s probably trained off a lot of doorbell camera footage. It’s unfortunate, but there is no real conspiracy.

I used to use an old Intel NUC with a HDD enclosure plugged into the USB 3 port as a NAS. Ran the *arr suite + Jellyfin on the internal SSD and stored all the media on the HDD and it worked fine. You should be good