Teams should really be choosing their model of work themselves, and anyone who doesn't like it should shuffle off to a different team within the company. Top down RTO is nuts.

Sometimes people are not very good at combining their own needs and preferences with those of people around them.

I am all for WFH and prefer a hybrid setup. WFH is easily the most convenient for me, but some time in the office is good for practical reasons and also for my mental health.

Actual introverts (especially in our computer world) don't have that and often lack a healthy social life, which can be partly fulfilled by the office's interactions. Some of us even are chronically depressed, which means escaping home is important to allow changing our mindset (which becomes attached to a location given enough time).

NB: in Europe and worked mostly for small to very small enterprises.