Question about Digitus DA-90368 Foldable steel laptop

My MacBook 13.3 stands perfectly still on the stand, because the 2 supporting feet are much wider than the thickness of the MacBook. If yours slides, either the product has changed since I bought it, or you are placing the stand upside down.

I also believe you placed it the wrong way - look closely at the product photo to see how you should use it.My macbook stands perfectly on it (and any other laptop so far)

I have the same issue. I only use this item, so that my laptop can cool down.