https://www.theverge.com/circuitbreaker/2018/7/31/17634058/android-p-notch-limits-google

Google is building official notch support into Android P, but it’s laying down some ground rules first: two notches is the limit.

In a blog post for developers yesterday, Android UI product manager Megan Potoski wrote that Google is working with device partners “to mandate a few requirements” for app compatibility purposes. Among those are limits on notches.