He was involved in the design, planning, and future-proofing one of the major redesigns of Google's data center fabric. Google, AFAIK still uses a derivative of the fabric today.
He worked on a few X projects and had some free reign to push next gen ideas. Delay tolerant networking is the one I interacted with the most, as well as Google Loon, if you recall that.
He was hired to go to meetings and state “I’m vint cerf, I work at Google” then blab for 2 mins and introduce the actual speaker for a meeting/conference.
maybe this is a good thing though, where someone with a huge, legitimate contribution and legacy gets to cash in on their status, vs. the typical influencer.