VidCutter is multi-platform and is based on FFmpeg, Qt and Python.
https://betanews.com/2017/05/12/easily-trim-and-cut-your-movies-with-vidcutter/ wrote:VidCutter is an open-source Windows, Linux and Mac tool for trimming your videos.
VidCutter latest release (v3.2.0) and changelog is available from https://github.com/ozmartian/vidcutter/releases.