I think you might be a bit jaded. I do work at a company where team meetings look a lot like this and yes we do get real work done. We don’t talk and joke around all day but there is space for it. Oddly, other, more somber places I’ve worked were much less productive. People were more guarded about asking for help or collaborating and there was little communication between management and everyone else which led to a very us vs them mentality. It turns out that liking the people you work with actually does make work fun and productive.