One of the more honest arguments I have seen about RTO:
The company has rented an important building for operations.
That building is prime real-estate, which is now loosing value, because no one is using it and no one wants to buy it.
Since that can get very expensive, forcing use of the building to keep the investment stable makes sense on paper.
Result: Workers are forced back into office, to everyones detremend. Just because some guys asset is loosing value and now everyone else has to suffer because of it.