It is on your device.
Tap on the bottom of the screen on the right side.
You will see recent apps.
Swipe left or right and all apps will appear.
Find play and tap and hold and move your finger somewhere to the side of the screen.
You can place it on the home screen.
If this is not exactly as it is, I have Android 10 so I cannot look into how it was on Oreo.
Anyway, try.
You will succeed!
