Pretty much the entire 4X mobile market, sadly.

“We invented a new kind of calculator. It usually returns the correct value for the mathematics you asked it to evaluate! But sometimes it makes up wrong answers for reasons we don’t understand. So if it’s important to you that you know the actual answer, you should always use a second, better calculator to check our work.”

Then what is the point of this new calculator?

Fantastic comment, from the article.

Work laptops in particular suck, I find. My first one was lagging, freezing, and crashing within months. The second one is three times as expensive but the same brand and is still not happy.

I also use Windows at home and haven’t had the same experience. I think it’s really manufacturer dependent