Guys, I searched about it and I found a solution.
I used the Quixel Mixer and created a material. After, I import it to UE5 and remesh a plane from the modeling tool.
( Key part is that plane from actor panel cant be used for displaced material because of some virtual texture issues, instead of that use plane from starter content, remesh & rename it.)
You don’t have to you Quixel Mixer to get a material with a displacement texture,
The solution is setting displacement by using modeling tools and not using the geometry shapes from the actor panel. Use meshes from the content drawer or any flat area. Otherwise, remeshing and virtual texture problems don’t let you apply displacement if you use meshes from the actor panel.