He’s also saying that Magit is so good that he doesn’t recognise the complaints which motivate some people to switch from Git to Jujutsu.

FWIW, I agree. Jujutsu seems fine, but Magit is fine too. Maybe Magit is the Blub of version control, and Jujutsu would change my life for the better, but … I seem to be able to run in circles around my Git-CLI–using colleagues as it is.

I've used it before when I used to use emacs and it's really neat and simple to use but I think lazygit is better. I think of lazygit as the spiritual successor of magit. If you're curious what that looks like you can see a descriptive video on their GitHub.