I think this is a somewhat overlooked advantage of office working, as a manager I used to get wind of potential issues before they blew up due to overhearing discussions in my team, i.e. there might be something they are concerned about but maybe not enough to want to directly trouble me about. Occasionally it might be something I'd want to get on top of early so being able to jump in and get the lay of the land was helpful. You could argue that's a byproduct of the culture not being transparent enough but I see it more as a reality.
It's also a reason why I'm generally not in favour of hybrid working, preferring fully remote or office based. With hybrid you have this awkward scenario of informal comms taking place face-to-face but with only a subset of people present, so it becomes somewhat pot luck as to whether people not present are kept in the loop, unless you put a lot of focus on comms channels. As I've said in previous threads, that's not to say you can't make it work, but I think people are a bit naive in thinking that hybrid working just literally means a 'best of both worlds' that will organically happen just by having people working some days at home and some in the office. I think hybrid is harder to get working well than fully remote and hence needs investment.
Unrelated to the above, the comments above about needing a dedicate working space / home office when WFH, I don't really agree that it's essential. Beneficial but for sure I can work anywhere so long as the logistics are there (proper internet connection, privacy etc). Whether that's the desk in my study or a kitchen table doesn't matter THAT much to me. The whole 'virtual commute' thing I don't really buy into personally, I do understand the principle about having a clear delineation between work-life and home-life but for me that doesn't need physical boundaries, it's a mental not physical thing for me.