Video Trimmer is a Linux utility to just Trim videos quickly without re-encoding or reducing video quality
Heard about this utility on the #LinuxUnplugged
podcast. This is not an editor at all but it was designed for extremely fast trimming of video. It extracts and saves the clip of a longer video. It is really a GUI front end to ffmpeg so yes you could also do it manually from the command line... but why.
See Flathub—An app store and build service for Linux
Find and install hundreds of apps and games for Linux. Enjoy GIMP, GNU Octave, Spotify, Steam and many more!