Here are some links I found useful to level up my VIM skills:
I've been switching between Vim and VS Code the last few days.
So far, I'm happier with Vim. I know the key bindings and can move between different files quickly. With VS Code, it's less convenient, and I fall back on using the mouse. This slows me down.
Although I tried to re-create my environment with custom key bindings in VS Code, it's not the same.
VS Code wins on re-factoring and providing helpful messages. You can easily see if you have unused imports. Automatically import modules and files.
Vim wins on editing and navigating.