May have more resources but I suspect googles servers also have some fantastic caches of common misspelling based on what your locale is and what most people are searching for.

A lot of that derived from aggregate data of searches that were more likely to be engaged with or lead to click through.

That kind of data could be used on a phone if they wanted to download a large cache of it every so often but since it could be time and location dependent.

Olzempik

Right now… Olympics.

A few months from now… you’re in Washington state. Maybe you want Olympus?

Recent searches for diabetes… Ozempic?

Some of that is just too hard to reasonable calculate and cache on a mobile device.