Actually it doesn't seems to work for me or probably this solution is temporarily, plus magisk (hide magisks, no root) block different applications. I think that the assistant won't work with screen off until google will change policy.https://droidholic.com/fix-safetynet-failed-cts-profile-false/ this fix worked for me on moto Z3 play
For what I remember:And there is an intelligible instruction for installing Magisk on this firmware (for dummies?
CMD: adb Reboot recovery
Apply Update
Apply from ADB
CMD: adb sideload Magisk-vxxx.xxx.zip