Hello
when I start installation de Kdenlive V22.12.1 sur my iMac OS Catalina, this message " impossible d'ouvrir Kdenlive car Apple ne peut pas vérifier qu'il ne contient pas de logiciel malveillants" appear 15 seconds later.
Could you repair this bug.

Thank you

Gérard Simonneau
Tel 0632659076

this is a well known issue. check MAC OS security settings and "allow APPS-Download" from verified developers..
Next try use MAC OS FINDER. Goto Folder Applications and right-click kdenlive.app. Then "OPEN" ("ouvrir"). You may see a warning, but just go on..

bonne chance