Hi ffac,
If you're worried enough to use Pi-Hole, keep in mind that Pi-Hole can make Windows updates fail:
FIX: Error 0xc1900223 in Feature Update to Windows 10, version 2004 (Solved) . . .
Step 5. If you're using Pi-hole as your DNS provider, then temporally disable or uninstall it, by running the appropriate command in command prompt, or change the DNS Servers in Windows, by following the instructions in method 6 below.
pihole disable
pihole uninstall
https://www.repairwin.com/fix-error-0xc1900223-in-feature-update-to-windows-10-version-2004-solved/Cheers,
Carl Fogel