Context is everything
I suspect his words may be taken out of context here. As a productivity, remote work and disaster recovery tool, Zoom is awesome, and the benefits became very apparent during the pandemic.
But he's 100% correct that it comes at a cost to employee onboarding, and to spontaneous conversations and innovation around the office.
Programmers use "talk to the duck" as a proven problem solving tool. Quick conversations around the office have huge value for building team spirit, solving problems, and fostering creativity.
The challenge a CEO faces is how do you balance both. How do you take advantage of the employee benefits from remote work, and the productivity gains in focus time, but also foster a healthy atmosphere around the office.
My instinct on this is that a middle ground is likely the best approach, with a couple of "office" days a week, and employees encouraged to be in the office more often than not on those days.