"Display over other apps" does not exist?

Question

To be able to use a specific app (not sure if I am allowed to mention names here but I can clarify if required) I need to be able to allow it access to display over others.
When I recently began using a new phone I was prompted through the app to turn this option on, however when I went into the app's settings menu it said that the feature was disabled as it would slow my phone down.
Confused, I contacted their support and was told I needed to go to the following menus: Settings >  Apps and notifications >  Special app access >  Display over other apps.
But when I go into the Special app access menu there is no option to display over other apps.
Is there any other way that I can turn this feature on? It seems bizarre that it is automatically turned off and I apparently have no choice in the matter.
I have seen similar questions asked but none seem to give a definitive answer to my question, so I thought it was worth asking myself.
(Apologies in advance if this is in the wrong category; I wasn't sure what to select.)

Swikruti Mohapatra · Accepted Answer

Hello!
Welcome to the Android Help Community!
It's possible that you have a device that has Android Go. It's a lightweight version of Android with some features stripped off to make it run well on devices with low end hardware. Display over other apps is one of those features.