https://thenextweb.com/insider/2020/05/19/microsofts-new-powertoys-run-launcher-is-like-macoss-spotlight-for-windows-10/

Win+R. It’s a command any Windows power-user is familiar with, but the Run launcher has remained basically unchanged for generations. Today at its online-only Build 2020, Microsoft announced an optional, open-source replacement for the command, dubbed PowerToys Run. The idea is to make the Run launcher a more elegant, functional, and customizable tool for power users more akin to Apple’s Spotlight.

For power users, the run command tends to be useful for quickly accessing system tools like the registry tool (regedit) or the startup utility(msconfig), and quickly running cmd commands. According to The Verge, the new tool will eventually be able to support all the same commands as before, but also be able to incorporate more features along the way, including plugins to customize the launcher to your needs.