I am in similar situation as the OP but at a go-forward hub.
Some of these people commenting about how great RTO will be I think are extremely naive. The reasons some like RTO is "collaboration" and "camradere". They want to be able to see and hang out with their work buddies, work and thus do great things. Great, I am all for doing great things. However, some of us have been 100% WFH for years. In my case, a few less than 20 years. WF shifted to this model and kicked us of the office so I responded like the OP; Created and purchased my own office, shifted work-life balance to support this model, and provided more work hours to WF. There are other advantages from WFH but you can read all that in all those other threads.
There are a lot of folks in WF throughout the years that have gone through multiple reorgs, regime changes, worked on building teams, put in long hours because the busness needed it, and responding to Leadership challenges when asked. We have done great things, maybe not in the direction that we ultimately needed to go, but we responded. All from WFH. Yes, I have been recognized; Multiple Team Excellence, 2 Gold coins, and a go-to person for institutional knowledge. Promises of new roles, promotion and growing your career constantly fell off the radar. Loyalty and showing you can handle the next level is not rewarded and it shows across the groups I work with. I have seen just 2 of my peers who were on my team move on to management roles but that's it.
After all, "we" are just the equipment, "they" are the team. Going to RTO isn't going to enhance your abilities to grow in your careers unless WF changes their tone from all of us just being a number.