The special app access on the OnePlus smartphone lists all special access requirements of apps, such as changing system settings or showing one app over another.

Using the special app access we can grant or withdraw the requested access to individual apps at any time.

Android 10 | OxygenOS 10.0
Step 1:  Open the  Settings
Step 2:  Tap on  Apps & notifications
Step 3:  Tap on  Special app access
  1. Open the Settings
  2. Tap on Apps & notifications
  3. Tap on Special app access

OnePlus Instructions