How big is the calculator app on Windows 11 that you need to cache it in RAM? On macOS, the calculator app is 6 MB. And that's containing both x64 and ARM code. How long does it take a modern SSD (6 GB/s?) to read that?

If it's the same as on Win10 it's a UWP App that needs a ton of dependencies like .net, WinUI2/XAML.

The appx is: Approximate size 21.8 MB according to https://apps.microsoft.com/detail/9wzdncrfhvn5

Win7 calc.exe had 758KB for i686 and 897KB for amd64.

Reminds me of the early days of MacOS X when the Calculator app was written in Java as a demo of how fantastic and native their Java integration with Cocoa bindings was. This of course made it horribly slow to launch since initializing the JVM back then was a massive chore.

You shouldn't need to cache a calculator app to make it load quickly - it opened instantly on a machine running Windows 3.0 with 2MB RAM.