Internet traffic today is estimated to be a few tens of exabytes per day. Even if you assume 100000 Starlink satellites (we're far from that), each satellite would have to handle hundreds of terabytes per day. That's tens of gigabits per second per satellite, assuming traffic is split evenly among them (will never happen in real situations).
Starlink V3 can pump out some seriously impressive speeds and handle thousands of clients. Starlink is both a great leap forward in rocketry and radio technology. I do still think funny how we are going back to the pre war technology tree for a re-visit