Do you believe Tim Cook could use the base model of the M2 MacBook Air as the only Mac for his needs as a CEO of Apple?
If not, what tasks to you think he does which would require a more powerful Mac?
Tim Cook could use an iPhone for probably all of his CEO needs at apple.
He's supervising people, providing leadership, watching presentations on other people's gear and meeting with people.
He could probably get by with his PA and an etch-a-sketch if he had to (if not, a portable whiteboard and a couple of different coloured markers).
Might be a news flash for some people but high level CEOs aren't doing pro workflows on their equipment. The use their devices for mostly communication and that's about it.
They have employees to handle the day to day actual work. CEO is (or should) be focused on building business relationships, guidance to lower levels of management, etc.
Any company CEO doing "pro level" work-flow stuff on any computer is a very expensive waste of their time.