I've definitely worked in small open offices or team rooms that were a lot more productive than being at home with a kid.
But the one most-of-a-floor-of-a-highrise open office I worked in, for a "more mature" company than the little startups I usually work for... that was a whole lot worse then even at-home-with-kids (and, not coincidentally, was the least "mature"/professional place I've ever worked, despite on-paper looking far more serious than other places I've worked).
I don't know how anyone got any work done there. I suspect their handful of fully-remote senior devs were doing most of the actual work. WFH with small kids would have been a big improvement.
But the one most-of-a-floor-of-a-highrise open office I worked in, for a "more mature" company than the little startups I usually work for... that was a whole lot worse then even at-home-with-kids (and, not coincidentally, was the least "mature"/professional place I've ever worked, despite on-paper looking far more serious than other places I've worked).
I don't know how anyone got any work done there. I suspect their handful of fully-remote senior devs were doing most of the actual work. WFH with small kids would have been a big improvement.