Not sure about WayDroid, but microG is confirmed to be working on Anbox after patching the default device image to enable signature spoofing: https://forum.pine64.org/showthread.php?tid=9815&pid=65378#p...

Anbox can also be used with Google Play Services. The Arch Linux AUR offers a recipe for building an Anbox image with Google apps (see PKGBUILD for code): https://aur.archlinux.org/packages/anbox-image-gapps/

The AUR also has recipes for Anbox images that include Magisk root and Xposed: https://aur.archlinux.org/packages/?K=anbox