I've used it a total of 2 times since I first saw the ability in Atom back in 2017. Once was more for the "this seems neat, let's try it" factor. The other was a legitimate, let's troubleshoot an issue while staring at the same massive screen together. It's not a bad feature, it just never stuck with my workflow - I typically hop on a Zoom call now days, someone shares their screen and pair program the old fashioned way (by yelling out stuff like one does when someone else is playing solitaire)