He called Git simple lol. Some good points here though. GIMP is definitely a bit clunky. Kdenlive does crash a lot for me, and often fails to recover the autosave, and it renders slowly. But there's a lot of other good open source programs too. Firefox, OBS, Blender, some people in the comments were saying Krita but I haven't tried it yet. There's also Chromium and VSCode but obviously those are backed by huge companies.