The moment half of the work force starts working from the office again, the dynamics are going to change. Those offtopic, face to face chitchats you have with your colleagues or boss hugely help your career growth. The WFH people are going to miss out on that.
One positive that this crisis has created though, is all businesses and institutions will take remote work seriously, and take the steps required to make it possible, especially as another wave of COVID19 is expected.