"qBittorrent and libtorrent-rasterbar are now officially included in Debian. Packages are maintained by Cristian Greco. See this page for more information."
https://packages.debian.org/search?keyw ... ection=all
lead to debian website but:
It seems more a problem related to debian web site.You have searched for packages that names contain qbittorrent in all suites, all sections, and all architectures.
Sorry, your search gave no results
I wirte an e-mail also to the debian package maintainer.