I installed kdenlive in the software source, but the version is a bit old and there is no Whisper, so I use the Flatpak version of kdenlive, but Whisper cannot be used, I installed it but it cannot be detected
Sorry for the late reply. Did you follow the installation and configuration instructions from the official Kdenlive documentation?
IIRC, flatpak kind of isolates the applications and makes interaction a bit more complicated. You may want to use the Kdenlive appimage or if your distro allows that install from the kdenlive-stable ppa.