Unity 2019.4.20f1 Android Build Support module Android SDK

Obs: Does can be downloaded in Unity Hub

In Edit > Project Settings > XR Plug-in Management select the Oculus option, can be the OpenXR too, but the Oculus what we use.

In File > Build Settings select the Android option and click in Switch Platform.

Then, there will be a button called Build And Run, click in it and wait the build finish. Alternatively, you can click in Build and select a folder to save the build.