Tapping Chicken in 5.7

I have opened Tappy Chicken from Epic in UE5.7 to learn how it was implemented. As i click play, iam seeing more than what i should be seeing, but when i click the BP_MainGame while the game is running the camera preview looks fine. Can someone explain what is the problem.

Iam attaching screenshots from UE4.27 and UE5.7 also providing the github link (GitHub - deepak6m/TappyChicken: Flappy Bird Clone Sample from Epic Games · GitHub) to the project.