The only criticism I might have for Kdenlive is that it looks like an open source program. It isn’t the most user-friendly application to work with and appears to have been programmed by someone who knows what they are doing but expects you to also know what they are doing. It isn’t the most polished experience, and some things seem to be a bit obtuse to do.
Feature wise, Cinelerra looks to be the best fit if you want to do anything serious, and that’s a problem, because it falls apart when doing anything serious thanks to a seriously bug ridden code base. I mean it! This thing is such a race-condition fest, it can’t even open its own project files on my system without crashing! (Start project, add clip, save it, try to load it … freeze!)
Shotcut is anther video editing software for Linux and it is an interesting one because its UI looks more like a media player than an editor. The software makes editing video very simple with the set of awesome features it has. For basic uses, it will work just fine, but if you need more powerful options, especially for advanced or professional video recording, then it may not be the best. However, with the features it has, it qualifies as a decent video editor for Linux.
Kdenlive is an intuitive and powerful multi-track video editor, including most recent video technologies. Kdenlive supports all of the formats supported by FFmpeg (such as QuickTime, AVI, WMV, MPEG, and Flash Video), and also supports 4:3 and 16:9 aspect ratios for both PAL, NTSC and various HD standards, including HDV. Video can also be exported to DV devices, or written to a DVD with chapters and a simple menu. Kdenlive packages are freely available for GNU/Linux, FreeBSD and Mac OS X under the terms of GNU General Public License version 2 or any version later.

This video editor has the ability to move things in the visual space straight in the viewer panel compared to the others where you need to change some value of x or y to scale or move things in your composition. This might not matter much in many cases but if you have a lot of elements moving or scaling throughout your scene, this is the fastest and a much more intuitive method than having to adjust the scale/position values of individual axes separately. This again is a big reason why I prefer an alpha (a damn good alpha) version of this software than a stable release of Kdenlive. See More

Kino always seems to be neglected when people are discussing Linux video editing. Perhaps it is considered too basic? I’ve found it superb for simple editing, adding titles, etc of youtube clips and home video. The interface is very intuitive and easy to grasp for the casual video editor. I am sure kdenlive would be a better program but it crashes every time I have ever tried it. I just downloaded latest version now Feb 2010 and crashed within 20 secs of using it. Tried latest pitivi just now also and locked up immediately. Kino is reliable, reasonably attractive, and does the basic job well.
So, there you have it. After using these many video editing software on Linux, no doubt things are improving fastly. Now which video editing software you want to use depends on your specific type of videos you edit. If you just want to throw a small home video of your cat together, I suggest you use Pitivi, and if you really want to go at it, try Kdenlive. Either way, you should be just fine. But, to answer the real question, which is, “Which is the best video editing software for Linux?”, I would probably have to say Kdenlive, overall. Pitivi is great Linux video editor – really great – but Kdenlive is a little better. It has great features, and its stability is increasing with every release.
This tool is way ahead of the current OpenSource alternatives. Whilst Blender is a 3D tool with a video editor, this is a video editor with a 3D modeler and it does video editing very well. Motion stabilization, transitions, color grading... all shine. If you don't mind using a closed source application, this is the best free (and possibly non-free) video editor as of 2019. See More
I use Blender 3d for most of my video editing. You can do things with it that you would not beleave! Problem is that Blender3d is its own world and learning it takes time. It is something for a pro with some 3d modeling skills or a normal person that can read and is willing to learn the GUI. Wait for Blender 3D 2.5 to come out. It has an all new interface and new improved work flows! Should be out in a month or two…
You can develop your very own motifs. You can add your very own logo designs and brand name watermarks, consist of great background pictures as well as different textures along with individualizing the font styles and colors quickly (just a few clicks of the computer mouse) to make extra professional-looking video clips as well as match your company’s/ site’s design and also look.