In reality they were out of room at many of their offices pre-COVID, and they hired like crazy during COVID, and had no room for everyone to RTO.
Before I quit you had to book a desk if you wanted to come into the office, hybrid. I pushed to get myself my own assigned desk because I despised the stock monitors, etc.
At that point (fall 2021) hardly anybody was coming in, so it was a ghost town. But they would not have been able to fit everyone in if they'd demanded people come back.
Hence the focus on RTO.