This article is from 2019, but it was my recent experiences with autocorrect which led me to finding this. My phone will occasionally have a few days of complete autocorrect meltdown (words completely out of context, random capitalisation, Spanish?) before normal service resumes.
My iPadOS shows the correct guess in the middle of the three options and then, as I go to tap it, swaps in a ludicrous incorrect guess. It is rage inducing.