Blender may be the single most polished open source project ever made.
It is actually a miracle that it is as good as it is considering other open source graphics programs like GIMP are horrendous to use.
I'm using it as a video editor for Linux, and I'm constantly surprised how rock solid and fast it is. DaVinci wouldn't even run on my PC without a GPU, but Blender can run on anything I throw at it. And aside from those two, the video editing situation on Linux is a wasteland. I'm so glad Blender added VSE, and that I found it and learned it.