I'm working on my synopsis. I've been doing it from 1 MC's POV. Is it okay to shift POV in a synopsis to show important events that happen while he is absent? Or just skip those events and bring them up when he is back around?

Not actual synopsis, but for example...

John goes to London.
Mary is in NYC and cheats on him.
John returns.

Leave it like that? Or more like:
John goes to London. Upon arriving home in NYC his friends tell him about Mary's affair.