Structure is useful; there's a social burden to going out of your way to arrange a one-on-one hangout. I wouldn't bother to do that with someone I'm not already close to, but I'm loving this structured arrangement where I don't have to feel awkward about reaching out myself.

Different stuff works for different people

this is about creating serendipity--the break-room or elevator chats--which is otherwise impossible after an abrupt shifting of the office work culture to WFH without any other changes. there's an actual need here even if this isn't the ideal solution.

heavy handed and awkward: sure. would I do it, as an introvert... 4/5 times: nope! would I appreciate the intent it if my org (optionally) did it: hell yeah.