KDenLive is a free, open-source video editing software. Neither of these is KDenLive. Both are actually ad-ridden, overpriced editors by tech conglomerates. The real download for KDenLive is the fourth result. :
Convert MOV to MP4 [Free & Online] – Movavi Video Converter
Best Video Downloaders for Windows 10 in 2024 (Free & Paid)
Convert MOV to MP4 [Free & Online] – Movavi Video Converter
How to Export Video in Blender: MP4 Video Format - YouTube