Re: Video Editing
Windows Movie Maker too is non linear, but it's still very limited, and good for some amateurish video. kdenlive is more or less at the same level.
When the main editing suites are from Avid, DaVinci, Adobe and Apple, AFAIK only DaVinci is supported on Linux, but only on very specific certified hardware.
Those are the tools you will find in pro environment. Other tools mey be OK for your personal or indy projects, but do not expect them to be used where money matters.