"obs-studio" is in the repositories ("api obs-studio") and indeed looks very promising.
Will give it a go. 
Looks to be a "ffmpeg" GUI frontend and mainly focussed on creating content for streaming platforms, which is in general what most people have in mind.
The interface is uncluttered compared to other video-editors and renders nicely.
It does look to have a slight learning curve ..... but at least it doesn't crash.
"Pitivi" also looks to be a good candidate (in the repos) ..... it's uncluttered, gnome oriented interface and hardly a learning curve. Albeit one does need to drag imported clips to the timeline where the audio and video channels are not very distinctly separated.
