David Sparks, on Apple’s AI Writing Tools:

Another problem with the text tools is the implementation of recommended changes. You can have it either replace your text entirely (without any indicator of what exactly was changed) or give you a list of suggested edits, which you must implement manually. Other players in this space, like Grammarly, highlight recommended changes and make it easy to implement or ignore them with a button.

He’s right. Not only is the proofreading not good enough despite being text-based (AI’s bread and butter), but the interface (Apple’s bread and butter) sucks too.