I feel like people are praising Iger a little too much. A lot of the stuff we have now come directly from his tenure to be honest. Considering the time to make a project, pretty much all shows and movies have been started under him (hell for most he is even the one that announced it at that Investor Day when they launched Disney+). Also his track record is far from perfect, he is mostly responsible for the state of Star Wars for example, his last big movie was The Rise of Skywalker and he launched all the show projects. Ironically something like Andor maybe wouldn't have been done the same under him as apparently, he doesn't want content too adult on Disney+.

He also actually chose Chapek as CEO knowing how he works (he was the boss of the parks division and had a reputation there)

Considering Chapek was only there 2 years (including a big part of that where the entire comapny was basically frozen with no parks, no cruise, no production, no theaters), it's not like he had the time to do much. The little he did didn't look good though.