1. Turn on your Fire TV device and go to the Settings.
  2. Select My Fire TV and go to the About section.
  3. Next, tap on the device name multiple times (For example, the device name may be Fire TV Stick).
  4. You will get a message telling you you are now a developer.
  5. It will re-add the Developer Options to the settings. Note that the developer options menu present in Android devices brings a variety of advanced features to users. This menu is intended for geeks and developers to control their devices. Most of these features are not very useful or even inconvenient for general users. More Resources:

How to Mirror Android Phone and Windows 10/11 PC to a Fire TV StickHow to Enable/Disable YouTube’s Autoplay Video Preview Feature on Android TVInstall APK Files on Android TV (Sideload Apps)Use Google’s Remote Control App for Android to Control Android TV