Few investors want RTO. I am a shareholder (vested) in a large tech company that communicates about the WFH/RTO matter with investors less than they do with their employees.
I can only imagine that executives want to please REITs and RE hedges so they don't dump the stock, even they own relatively little, as many executives are constantly cashing out at a slow rate. It's not for the good of the business because the days of equity financing and attracting investment is far in the rear view mirror for most large tech, and because we know this harms companies in the long-term. It might just be personal greed.
By my rough estimate, Sundar Pichai sold an average of $1.8M of Alphabet stock every month since 2015. A 3% dip on the stock would have made him make perhaps $50k less pcm. Wallmine says he's now selling at a rate of $16-40M a month. 3% is $0.5-1.2M loss every month. At that scale, the downsides of RTO to these executives pale in comparison to their personal losses if they don't please REITs.
All the other employees with peanuts in vested equity probably see it differently. I know I do. I'll take a $1k hit to not make all my colleagues go through RTO when they've moved away during the pandemic, have them pull their kids out of school, move out of their dream house, abandon their parents who need care, etc.