Nonsense. When I'm coding I want to be left alone to code. Often I need to talk to people as well, and I can do this very effectively over Slack, video meetings and screen sharing. I work on a team that was mostly in-office before COVID but I was one of a handful of remote people. Everyone was able to collaborate effectively when needed. Prior to that I've also been in the opposite situation where I worked in the office with teammates who were remote. It's really not that hard.