@RapidRotator How did you install Waydroid and the Waydroid image? I installed it via Waydroid Helper (regular image, not Gapps), and everything just worked. Had to grant a few random permissions to microG, but everything else including signature spoofing was supported out of the box.
Edit: I should also mention that I did nothing special to install microG. Just downloaded the regular APK (NOT the user mode one), and installed it. Then updated via f-droid.