Deluge splits the BitTorrent work into a daemon and a face: a desktop window, a web page, or a terminal. Plugins add labels, schedules, and stats. It is open source and community run. A home server that downloads while the laptop is closed is the usual reason to pick it.
The interface looks dated. Plugins range from maintained to abandoned. The daemon still speaks to the swarm from the machine it runs on, so that machine’s IP is the one peers see. Bind it to a VPN there, not only on the laptop you use to click. If you do not want plugins, qBittorrent is the calmer install.
Use it for a headless box and a thin remote. deluge-torrent.org
Deluge’s web UI should not listen on the open internet without a password and TLS. The daemon password is not a suggestion. Plugins that sound like privacy add-ons can be unmaintained. Read the last update date. A thin client on a laptop talking to a daemon on a server means the server’s IP is the public one. Put the VPN on the server. Putting it only on the laptop does nothing.