It seems that there's a paradox here: if remote work is good for companies, then why would there not be other companies offering it as an option? It seems like

It seems that there's a paradox here: if remote work is good for companies, then why would there not be other companies offering it as an option? It seems like at least one of these statements has to be false. My guess is that remote work is not actually good for all companies, which is leading some of them to call for RTO. Other companies will keep it, but perhaps not as many as employees would like. The same could be said for many aspects of work, like free lunches/dinners/massages, which are also disappearing as the supply/demand equilibrium is shifting as you describe.