Apple spent a lot of time already doing a lot of this with Siri instead of focusing on external knowledge. This didn’t replace their UI people. Voice commands aren’t always appropriate and a UI is still needed.

The UI for setting up a daily alarm is a little clunky, since it requires individually selecting each day. I needed to setup alarms for pills every 12 hours. Instead of doing this manually, I asked Siri to do it and it was much easier.

As an easter egg, you can even use some Harry Potter spells. “Lumos” will turn the flashlight on, “nox” will turn it off.

Not everything needs a bunch of AI. Most OS operations and settings are probably better without it, other than maybe for helping to process intent if it’s unclear.