Everyone knows the takeover of the smartphone's notch. The essential phone was launched with a notch, then the iPhone X made it into the mainstream, and now, almost all phone manufacturers think that the notch is the future of the phones. However, this is what happens: these manufacturers of random Android phones have not been able to make their latest generation phones work perfectly because the operating system is not designed for that segmented screen, or at least it has not been until now.
The recently announced Android P has "drop-down display support", also known as notch support. Developers will be able to test how their full-screen applications work with the notches through the tools that Google is launching today. This is good and useful because some of these notch iterations have been horrible, mainly because the software was not created to consider these cuts. Occasionally, time bars or network bars did not line up correctly, for example. You can see an example here with a phone called Noa N10.
Now the responsibility of support is in the developers. Congratulations for the responsibility that everyone has inherited.