FlowBlade

FlowBlade is an open-source video editor for the Linux system. It is free to use and speedy. It has many useful features both beginners and masters will love. Some of them include Composite video with images and add a filter or animate.

Flowblade supports all the media that in general can be accessed in a Linux system when the FFMPEG library is working as the backend. Typical startup message on terminal tells that 146 formats, 78 video codecs and 58 audio codecs are available to be used.
Source

GitHub