This is really great.

I’ve recently switched to Helix editor after 10 years of vim and haven’t looked back. If you’re looking for something a bit simpler, zero configuration, but with the same philosophy as vim (select -> action) give it a try.

Are there any good VSCode extensions that support helix-style input?

Yes, you'll have to tweak the default keybindings a bit to match Helix but I am using dance successfully:

https://github.com/71/dance