The above commenter is talking about why touchscreen keyboards have become worse over time in general

Apple additionally may have just bugged up their implementation as well, but the above mentioned issues exist even on Android, and didn't a decade ago.

I still contend that the single best touchscreen keyboard and autocorrect implementation was the onscreen keyboard on the Microsoft Zune HD. A tiny tiny screen, and you could still type without looking and nearly always end up with the right text. It was magical, and creepy in retrospect.

But nobody bought it so we had less good keyboards for a decade. Then companies insisted that they could throw "Algorithms" at the problem (which is what we had been doing for a decade but whatever) and make it magically better and now everyone gets worthless autocorrect because of the everpresent "Nobody is actually average so tuning your system to the average makes it bad for everybody" problem that has infected literally all "Data driven" product decisions.

We literally had better text prediction using boring methods. We literally had working voice control on flip phones from the 90s. All on device too.