None of the CEOs you’ve mentioned have changed before or after the pandemic except AMZN.
I think it’s unfair to say Tim Cook hasn’t had a hit. They started the watch line up, AirPods, the M series chips are some solid products and revenue streams. Also while he may not be a “visionary” I think he is done a mighty fine job of making AAPL one the best brands to exist.
The economic climate changed since the pandemic and the cards dealt now are a bit difficult compared to the low 0% interest rate times.
All I’m saying is, I disagree with your opinion by adding my two cents, but to each their own :)