If you take a bunch of very extroverted people and have them all work remotely they will not have a good time (in general).
Equally; if you take a bunch of very introverted people and have them in an office they'll really not like it, especially in open plan.
The other problem is fraud levels in hiring for fully remote is absolutely shocking. There are so many stories now of fake candidates etc, massive cheating in interviews with AI, etc. I've seen many stories like that even with really 'in depth' interview processes, so much so people are now going back to in person interviews en masse.
My rough take is that organisations need to really rethink this home/office thing from first principles. I suspect most engineering teams can work as well/better fully remote. I very much doubt all roles are like that. I think we'll see WFH being based on department or role rather than these global policies.