Just like OpenShot, it is incredibly easy to learn and use this software. Flowblade gives its users the features of video transitions, watermarks, batch rendering, and drag & drop support. In addition to that, it also supports various image/audio/video formats. It also supports proxy video editing. As I already mentioned, it’s a method of editing in which original media clips are presented on a timeline by proxy clips for light-weight editing. The full resolution of the video will be used while wrapping up the project.
The Cinelerra entry needs updating. Not only does the provided install link not work, the separate branch GG Infinity supports 8 Linux distros and provides instructions to auto-update every month (see https://www.cinelerra-gg.org/downloads/). If the different branches are confusing, visit https://en.wikipedia.org/wiki/Cinelerra which will clarify it.
Davinci Resove is another non open source video editor for linux, like Lightworks. It used to be a very excellent color grading software, and now, it's a great video editor as well. You can do all the basic editing and some of the advanced editing on the free version (multi-camera editing, 3D editing, motion blur effects, and spatial noise reduction, etc are only available on the paid version)