The Office is no longer on Netflix. You can see the first two seasons for free on the new NBC streaming service, but will have to pay to see anything after that. UGH.
One good thing that has come of this (literally the only positive) is Peacock is sharing some never before seen footage of the show on social media. It's not the same, but it's a nice gesture. (Even if that gesture is a marketing move to try to get subscribers as there will be more unseen footage on the app.)
Here's some never before seen footage & deleted scenes.