Actually, they may have their conclusion based on their findings but I must say it depends on what measures they used in carrying that.
It's the most effective aspect of work I wouldn't want to give a shot again. It kept me on my toes and most times I don't sleep because I would have to carry out my research and ensure I memorized everything for the next session I am to have with my Boss. It's even more productive and efficient to work. I was happy the very day I was told that the remote working has ended because I can now have my time to face home relaxation and domestic chores. Every researcher may have their conclusions based on the statistics they have tho.