"In the editor isDebugBuild always returns true." is false?

So, I were gonna add some debugging features in my game, however I couldn't remember how to check if the game was running in a debug build or not.

I came across this documentation page to help me out : click me

And I saw this; "In the editor isDebugBuild always returns true."

And I tried it in my editor, however isDebugBuild returned false anyway?

Is this just me or is there something wrong in the docs of Unity?

Here's what I tried doing :

     if (Debug.isDebugBuild == true)
     {

         if (GUI.Button(new Rect(Screen.width - 70, 10, 60, 30), "Dev info"))
         {

             if (DeveloperInformation == false)
             {
                 DeveloperInformation = true;
             }
             else
             {
                 DeveloperInformation = false;
             }

         }

         if (DeveloperInformation == true)
         {

             GUI.Box(new Rect(Screen.width - 310, 60, 300, 600), "DEVELOPER INFORMATION MENU");

             // Stamina Information
             GUI.Label(new Rect(Screen.width - 290, 100, 1000, 1000), "Stamina : " + stamina);
             GUI.Label(new Rect(Screen.width - 290, 120, 1000, 1000), "Stamina Regen Timer : " + StaminaRegenStartTimer);
             GUI.Label(new Rect(Screen.width - 290, 140, 1000, 1000), "Stamina Regen (Per Second) : " + staminaRegen);
             GUI.Label(new Rect(Screen.width - 290, 160, 1000, 1000), "Stamina Drain (Per Second) : " + staminaDrain);

             // Running Information
             GUI.Label(new Rect(Screen.width - 290, 210, 1000, 1000), "Is Player Running : " + isRunning);

         }

     }

However I had to change the first if statement to this instead since it didn't work in editor :

 if (Debug.isDebugBuild == true || Application.isEditor == true)