There's another factor: their jobs are different. Obviously working in an office is advantageous if your entire jobs is meetings and talking to people. They're going to get frustrated when they are in the office and the people they want to talk to aren't there.

But it's waaaay less useful if you are a worker bee just programming all day. Yes it's still better to talk to people next to a physical whiteboard, but it only matters very occasionally. My wife found it astounding that pre-covid I would sometimes go into the office and not really talk to anyone all day. Literally would just be sitting at a desk typing; the desk could have been anywhere.

If you're somehow a FAAaaaang executive reading this, consider making RTO only mandatory for the people you directly manage and talk to, and then let them decide the policy for their subordinates.