I have checked that the “python” tab is not in Setting-ConfigureKdEnlive-Enviroment in version 25.04.0 and it is in version 24.12.3
Check this discussion: Problems configuring Kdenlive for SPEECH TO TEXT and OBJECT DETECTION
Kdenlive can detect where you installed Python (I think), so after you did that just go the Plugins tab in Settings and go through the installation of the dependencies and downloading of the models for S2T and SAM2.
O.K.
Thank you
Lamola