If you want to test the speed of the internet network currently being used on your laptop or device, you will usually use services like Speedtest or Fast.com.
Recently, through the latest Windows Insider program, Microsoft seems to be testing the internet test feature built into their latest beta version of the Windows 11 operating system (KB5065782).
This function can be seen when you right-click on the internet network icon, where the internet speed menu can be shown between the two existing network menus. The option will open a web browser that will open the Bing search website and start an internet connection speed test.
The feature is seen in the testing phase at the moment, and it is not yet known if Microsoft will develop an internet connection speed test built into the Windows 11 operating system.