Out of curiosity, in qBittorrent v4.3.5 release, what is the reason for "Lower Qt requirement to 5.11" and old version from 2018, instead of Qt 5.15 LTS Commercial Releases from 2020?
https://wiki.qt.io/Qt_5.15_Release#Qt_5 ... l_Releases
(there is even Qt 6.1 but I understand there might be compatibility issues)