Video

Game recording

I used OBS for in-game recording. This was useful to get backgrounds, or simply in-game footage. It is free and easy to use.

Editing

I used DaVinci Resolve for the video editing. Blender already has a video editor, but since I was used to Resolve, I decided not to use it.

Resolve has a good free version, just do not put real personal information in the form they give you before downloading it, you can bypass it with fake information.