Use that icon and the calculator will be pinned to remain on top of other opened applications. Alternatively, you can also press the Alt+Up hotkey to pin Windows 10 calculator app on the top.

Calculator, Mail and Calendar apps among the first to get the Fluent Design treatment initially seen on Windows 10X By Humza Aamir February 21, 2020, 8:42 18 comments Serving tech enthusiasts for ...