The logic of RTO has always been about two things:
1. A desperate attempt by investors higher up the food chain to salvage the commercial real-estate market.
2. A "work force reduction" technique that avoids too many negative headlines.
Anytime you see RTO the logic is always coming from one of the above, and has nothing to do with productivity. Reduced push for RTO in tech is primarily because the commercial real-estate market is increasingly looking doomed regardless of efforts to get people back into office buildings.