We've tried VS Live Share but it seems a bit too slow and clunky. Our team tried to use it but we all reverted to just sharing our screens over Teams. Last time I used Live Share it appeared that I could only navigate those files that the host had already opened and I felt like a second-class citizen so retreated back to my own IDE instance.
Maybe the JB version is better but as an inveterate R# user I have my doubts. R# is two steps forward, one step back. Absolutely wonderful and essential right up to the moment when i-t s-u-d-d-e-n-l-y slows down, starts forgetting about things or just flat out chucks out garbage. It's been doing that since we first used it many years ago and there's no sign of them ever fixing it so I'm not going to risk using their IDEs.