This week, Musk claimed in a tweet that Apple had mostly stopped advertising on the Twitter platform.
Apple is not alone in reducing its campaigns on the social media platform since Musk took over.
Whether accurate or not, Musk's allegation that Apple has "threatened to withhold" Twitter from its App Store may resonate with other developers.
One of the most notable people to switch sides was Doug Field, who started at Apple, joined Tesla and then rejoined Apple.
In case anybody missed the reference to Apple's App Store, which Apple maintains as the exclusive way to distribute apps to its devices, Musk then faked a cough and said, "Apple."