Microsoft is experimenting with a new feature called "Startup Boost" that will start a set of Microsoft Edge processes in the background to have a faster experience to launch the chromium-powered Edge browser on Windows 10 from desktop, taskbar icon, and links within other apps.
Though the Redmond giant didn't give any commitment by when the feature will arrive in the stable build, you can experiment with the feature right now if you are running Edge Insiders build.