Hello, I finally could find the "Mirrorlink" app in my P10.
It cannot be found in the settings.
Based on a thread, it says: "Just installed VTR-L09C432B162 update on my P10. I can confirm that this update enabled MirrorLink on the device. UK device. Btw if you wonder, does your Huawei phone has the MirrorLink enabled, go to Settings - Apps - More - Show system processes and look for Huawei Connect Service. Make sure this has the Microphone permissions enabled. Under Apps should also be the MirrorLink app." (Kudos for devicehigh777