I also would like to see a new CEO. Even so, I don't see it as necessarily leading to better treatment of customers or developers. Arrogance seems to have become part of the culture at Apple, and if a new CEO is an insider, they may continue to think that Apple is solely responsible for the iPhone's success (ignoring the work of other devs and apps), and deserves 30% or more of the revenue from the App Store.
Apple now can’t get anyone to support new platforms
That was a contractual arrangement. Apple agreed to make Internet Explorer its default browser on macOS for 5 years, and Microsoft agreed to continue to offer the Mac version of Microsoft Office. Also, Microsoft was allowed to purchase $150 million in non-voting Apple stock.
I was in the audience when Steve announced this deal at MacWorld Boston in 1998. This was the famous "Microsoft doesn't have to lose in order for Apple to win" speech, after the audience booed when Bill Gates’ face was displayed on a large screen.
And let's be clear: Microsoft had run afoul of antitrust laws, so having Apple being seen as a viable company was in Microsoft's best interest.
After the 5 years were up, Apple introduced Safari.
For better or worse, he seems to have a decent relationship with Trump—as good as can be expected given the situation. Whoever Cook's successor is, it's going to be someone Trump has never heard of, which would be bad for Apple.