It’s not quite as feature rich as something like davinci resolve, which is straight up movie industry level software, yet it’s free to use.

And resolve actually runs on Linux, too.

KDEnlive has also had some bugs over years. I personally started editing with it first, but ditched it for resolve due to a bug that would cause audio and video to gradually go out of sync over time, but only when actually rendering, and there was literally no way to work around It. I had no way to turn my completed edit into an actual usable video file…

I am back to using it, and it has improved a ton. It’s extremely capable and has all the features most editing projects would ever need.