Honestly, it's pretty cool in my experience; in VSCode everyone gets their own "client-side navigation" so while you are typing something, your coworker can go look up a function for you in another file, etc. Even though they exist in "your" instance, they still get Go To Definition, Find References, type-on-hover, etc.

Realistically though it doesn't replace every instance of screen sharing, for me. It's also cultural to some extent I guess. For things like debugging or being intro'd to a new codebase, I think it's great, though.