If you had access to the video editing pro level, then you must try DaVinci Resolve 14. Except for multi-camera editing, 3D editing, motion blur effects, and spatial noise reduction which are only available on the paid version DaVinci Resolve Studio, you can almost do any professional video/audio editing and color correction with DaVinci Resolve 14.
If you are looking for a professional-grade video editing software for Linux, it doesn’t get better than Lightworks. What best about Lightworks is that it offers a free version along with its paid version. So, if you are just starting out you can start with the free version and then upgrade to the paid version, once you are comfortable with your video editing skills. The company also offers a good selection of tutorial videos to get you started on your video editing journey. When it comes to features, Lightworks doesn’t disappoint. The editor natively supports almost all the video formats you can think of. When it comes to exporting the software comes with a dedicated web export (MPEG4/H.264), so your videos are share-ready as soon as you complete your editing process. It also supports multi-cam editing and can support 4K content really well. The bottom line is, this is one of the best professional-grade video editing software you can get on Linux, Period.
iMovie is one of the easiest video editing programs out there. With a couple of clicks and some dropping and dragging you can conduct high-quality edits that seriously enhance the quality of your video. And with One Step effects you can apply a variety of different editing techniques instantaneously to your whole video, with just one click. The audio editing capabilities are also a program highlight, with 19 different unique audio filters that allow you to easily edit sounds and even change voices. iMovie is considered a consumer-level editing tool, so it’s not at all hard to learn.