Pierre, did you not see the mention of Blender??? It is GREAT for doing video. Yes, you do have to learn it but you want to do a good job right?? One thing to note. It is best in blender to turn the movie into a series of stills in the openEXR format. It is also important to go into settings and increase the buffer memory so that you get a much faster response as it loads much more movie at one time. Make sure to render the firm into its own director or you will have a LOT of picture files cluttering some other directory! Also more Ram mean better responsiveness and having a SSD drive is also a GREAT benefit. I would think this is true of any system.
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.
Blender is a fabulously sophisticated 3D computer graphics and animation creator. Check out the Blender gallery for a sampling of movies created with Blender. It supports a large range of high-end abilities such as ray-tracing, key-frame animation tools, object tracking, super nice character modeling, realistic physics for great liquid and smoke/mist/gas effects, and realistic movements of objects and characters, and excellent realistic light effects.
3.2 New Versions of Noble Samurai Software: Noble Samurai, in its sole discretion, reserves the right to add additional features or functions, or to provide programming fixes, updates and upgrades to the Noble Samurai Software (collectively known as “updates”). All provisions in this Agreement apply to all such updates unless new or additional terms and conditions are expressly provided with an update. Noble Samurai may determine that an upgrade will be offered at an additional cost to You either as a further one off payment or on a subscription model.

Blender – 3D animation suite (cross-platform) : Blender is a 3D graphics application. It can be used for modeling, UV unwrapping, texturing, rigging, water simulations, skinning, animating, rendering, particle and other simulations, non-linear editing, compositing, and creating interactive 3D applications, including games. Blender’s features include advanced simulation tools such as rigid body, fluid, cloth and softbody dynamics, modifier based modeling tools, powerful character animation tools, a node based material and compositing system and Python for embedded scripting.

I’m so pleased with this software that I have been paying a monthly membership fee ever since my free trial expired. I use Content Samurai for YouTube affiliate marketing. You can too. Just add a link to your affiliate offers in your video descriptions. I also turn plr articles into videos. That’s right, I don’t have to write anything. I just create videos from plr content.