I absolutely could launch the calculator app by keyboard shortcut when I'm on a desktop. And I kept a calculator widget across an entire full screen in my Android phone's home menu, for many years.

These days, I really value the ability to just open a new tab, belt out my instructions, hit enter, and see the result though - - it is mostly things like calculating the total cost of buying something across a year, or calculating currency conversions, or estimating battery capacities and consumption rates.

In this regard, without wanting to buy into an entire AI ecosystem, I do require my search engines to do at least one function beyond mere searches: Pre-algebra.