Pitivi has been around for a few years too. This video editor for Linux is a GNOME application and is designed to fit into the GNOME desktop. (I assume it will work just fine in KDE or XFCE too.) Installing it requires the use of Flatpak, but they give rather easy-to-use instructions on the Pitivi website, and I had no problems at all. Drag-and-drop seems to be well supported, and it first transcodes videos before they can be used, which takes a few minutes or seconds, depending on the size of each. But it appears the videos can still be used during this process.
Nevertheless, when you find the elusive, easy to use video editing software that has the features I mention, that doesn't crash, or at least when it does crash recovers files the user was working on, that doesn't need constant tweaking using the shell, that has reasonable, non obfuscated documentation in understandable english, please let me know. I will buy you a beer and the software without hesitation.
The option to group multiple video and/or audio tracks is absolutely marvelous for use with multiple view angles and sound tracks. This permits you to modify all the tracks at the same time and prevents the need to constantly re-synchronize your clips. KDENlive can also edit multiple selected tracks at once without grouping them, which permits great flexibility when changing edits. See More
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.

Look at the screenshot I attached above. I want you to look at the left sidebar. The #01 “Getting Started” video is what I just walked you through. You can see there are more video instructions. The videos are between 2 and 5 minutes long each, so it doesn’t take long at all to become acquainted with the software. The 5 additional training videos include the following topics.