If you were to decide to try Usenet, you install a program called SABnzbd (kind of like qBit, it downloads the files - no uploading, downloading only). It has an SSL connection enabled (Secure Sockets Layer, encryption-based internet security protocol). Even without a VPN, they may be able to see that you’re searching you’re indexers (on a program called Prowlarr - searching for a file to DL), but you’re ISP can’t see what you’re downloading on SABnzbd. I still use Mullvad, so I know they can’t see anything I’m doing in regards to searching or DL.