That is good for you. I use Mint and have used it for over ten years.
Nevertheless, thank you for at least making the effort to try and help me.
By the way, Whisper is correctly installed from within the Flatpak Kdenlive.
So only the speech/language models won’t download/install.
It is my belief that the latest Flatpak should have the entire proces ‘automated’ when required. At least that is how I understand.
It uses a Python venv to accomplish things.