ShiroKuro I have never heard of the term "non-linear editing". Maybe this means, it is a video editor that you can use in the way you want. My guess what "linear editing" means, it forces you to do steps in a strict order, which would be more beginner-friendly, but also more restricting.
I recommend Davinci Resolve strongly. The free version is already very powerful and you will not miss any features. About the steep learning curve: Don't be intimidated - I recommend to start with simple tasks, like:
- Cut the beginning and the end
- maybe do a fade-in and a fade-out (fade the video out)
- normalize the audio levels
- add a title for the beginning 10 seconds (then fade it out 🙂)
Davinci has a big community. For every one of those examples you will find a short youtube tutorial, explaining how it works, showing you all the menus and buttons to press. Those tutorials explain it way better than I could do here in a piano forum in text form, not being an expert by myself. For instance google for "davinci resolve export audio as mp3"
After you are familiar with the basics, you can add more and more editing stuff in your follow-up videos. Davinci is very stable. I had never a crash with it - it is the first video-editing software I ran without having a crash at all.
