Android recovery is a bootable partition, which lets you apply official system updates from SD Card, factory reset your phone or wipe its cache partition.
How to enter Motorola Moto G8 Plus recovery mode ?
Power off your device.
Boot in recovery mode by pressing and holding Volume Down and Power Button at the same time.
Release all buttons when the Motorola Moto G8 Plus screen flickers and in a few seconds the Recovery screen will appear.
After the Android robot with triangle appears hold Volume Up and Volume Down simultaneously and recovery menu should appear