Im not sure you lose the WFO knowledge though. It just does not come up quite as easily. I actually find WFH results in more specific one on ones where you have to say to someone. I need to understand X, wereas in WFO it was like you just announce something is wierd or what up with X and there is an impromtu back and forth that gets the knowledge transfered. When I say its sporadic. I mean the occasions where it occurs is sporadic. So you can go days or weeks without some sort of tidbit being passed on so for all those days in office it offered no real benefit, whereas you always get the WFH benefits any time you do it.