Yeah ... my org immediately stopped provisioning space for new employees once we had remote and could desk-share, so when RTO idea came up, the first thing that stopped it was we physically have only about 50% of the desks we need now. It's now actually awkward when we hire someone new and they want to work in the office because we have to explain we actually physically can't accommodate that.
But still there are people who preach RTO as if all the desks are just waiting there. I think all the benefits of remote work are just taken for granted now and people just see downsides.