Any illustration software will do. Those graphics can absolutely be made using Adobe Illustrator, but depending on your usage it might not be worth it to pay for its subscription fee.
Inkscape is free and open source option, and it's more than capable of recreating graphics shown in the video.
Figma is another alternative you might want to try, as it is more beginner friendly and web based so you don't need to download anything, though its illustration features are pretty limited (they're primarily used for UI design).
It's more about skill than tools, though. I mean you can perfectly create such graphics with Microsoft Paint. Definitely not how most people would probably do it, but it is possible.