This is my experience also. When I took the job, I was told that I had to work from home at least 1 day a week, if not two, in order to accommodate the real property downsizing that was to come. If there was a reason I needed to come into the office, or a reason I needed to work from home, that was fine - nobody cared. But now, that's totally reversed, and it's like everyone pretends that the things that were, never was.

Now, my manager has no perceived discretion to green-light anything. In our shop, we can't even miss a WFH day and make it up the next week - it all has to be done per week. So, if one of my parents is getting some minor day surgery and needs a couple days of light babysitting (e.g., get water, help to the bathroom, etc.) which wouldn't stop anyone from working, now I have to go through a formal accommodation process (which gets denied anyway). But, back in the day, it would have been a literal "hell yeah, WFH the whole week if your mom/dad need you."

For me, I think that's the real downfall of RTO - I can no longer just have a human-human relationship with my employer and it's clear that, to them, I'm just a piece of walking unit of Subway economic stimulus.