Set to 0 the following keys (add them if needed)
- BingSearchEnabled (DWORD)
- CortanaConsent (DWORD)
I've been running w/ those since Windows 1903, and that's why I don't care about all those Edge shenanigans (except the default browser switcher).
All those sub-par web experiences in the Windows Shell are tiresome. Taskbar search breaking because of internet issues tops it all off nicely.