On Linux I guess you'd use Audacity for audio-editing, OBS for capturing on-screen video and, if you feel adventurous enough, Blender for the video-editing.
Oh wait, those are all open source project and ported from Windows to Linux. You lucky Windows-user ;)
Audacity and OBS are both great. I use Blender for editing videos and it works well but is extremely not-beginniner-friendly.
Openshot and Kdenlive are both good open source cross platform video editors that are easier to learn, though kdenlive's Windows support is still in beta.
Openshot and Kdenlive are both good open source cross platform video editors that are easier to learn, though kdenlive's Windows support is still in beta.
https://www.openshot.org/
https://kdenlive.org/