[crazygringo]

> 99.9% of people using Microsoft Office are using it on one computer.

That's not even close to true.

A lot of people use a company PC to work at the office, and a Mac laptop at home. Or vice-versa. And they make edits on their iPhone. Or Android. Or iPad. Or Surface. Some of these use an installed version, and some of them use a web version.

People today absolutely do not stick to one device, or even one operating system.

To be honest, the idea of a system dictionary that is tied to a single device doesn't make much sense in today's world. The Mac dictionary doesn't even get synced to other devices logged in with the same Apple ID!

And the Microsoft Word spellcheck feature predates the macOS one by many years.

[whywhywhywhy]

If the custom words in your spell checker are so essential OS level is still preferable than app level because you only need to add the words to the operating systems you use not every single app you use ever.

These justifications just don't hold up to me and feels like we're starting to make excuses for why electron devs feel the need to waste time and money writing customer spell checking solutions.