This Unreal 5.3 video is about creating a minimap using a background Texture instead of a Scene Capture Component (like from video https://www.youtube.com/watch?v=4clmzyF05W4).
We start by creating the Material Parameter Collection, the Material, and the Widget Blueprint. Next we build out how the Material works with the input values from the Material Parameter Collection. Then we talk about the Traversable Area and how to apply the Multiplier with your own Minimap Backgrounds. Lastly, we rotate the Player Image to face the same direction as the Player.
https://dev.epicgames.com/community/learning/tutorials/rmJw/creating-a-texture-based-minimap-in-unreal-engine-5-3