This is true in my experience. I've worked in on many remote teams and colocated ones and colocated ones have always been more productive. Sure remote teams are sometimes equally as productive but thats in select circumstances.
I am on 100% remote team now for past 3 yrs and remote teams lack any human connection, team culture or shared struggle. Sure I know where everyone lives and how many kids they have but I don't have any real connection with any of them. There is no random conversations/ideas to be shared at lunch ect.