I forgot to mention...there IS a little 'withdrawal' period which can be both frustrating and humorous at the same time.
We get so conditioned to certain things around work that when they suddenly are not there, it can be "interesting". Some of that is honestly the sudden change in communication...all those folks that you interacted with daily including "socially at work" get missed a bit. Not all of them
...but likely most.
About three months did it for me...but even today I sometime miss those morning conversations with my "partner in crime" and her manager who is also a good friend.