Many thanks for this! Android cook times for my projects are much faster now 
One thing I’ve noticed with 4.21 P1 however I can’t see how to do print screen stat commands anymore in VR. 4.20 had a “use debug canvas” checkbox under VR rendering settings which does not exist in 4.21 anymore. Makes sense, since this should have been on for VR projects by default, however testing with a GearVR / GO I don’t see any output anymore.
Can anyone else confirm this? Is there another way it’s meant to be shown now??