Actually, in Emacs, you only need to know one shortcut, C-H t, which runs the Emacs tutorial. Takes ~45 minutes, and gives you enough knowledge to be productive. I say that not because I'm pushing Emacs: I'm pretty sure similar tutorials exist for the Vim family.
On the other hand, I can't imagine doing 19 lessons on VSCode shortcuts. Actually, I can, I just am sure I wouldn't remember much afterwards.