There’s no grand conspiracy where executives are helping boost the holdings of REITs and institutional investors. Executives as a “class” and a “job” just like the traditional butts in chairs approach to work. They have to think about the entire company and it’s easier to have a singular approach. Instead of bespoke approaches by team/department/title where some people are RTO and some WFH as that quickly reverts to everyone is on zoom/teams for every meeting because of the remote people.
WFH has also provided a whole host of new and unusual problems for HR. I’m sure most executives are just tired of hearing about it. In my own experience/approximation only about 1 in 3 people are can actually self manage in a way that’s needed for remote work to be effective. I think software development is a very specific job that is very well suited to WFH but most other jobs within a company are not.