Low Poly Terrain - Polygons are subdivided into Quads, instead of Triangles

So, Following this tutorial by CGSky https://youtu.be/3Zcz3_9chcY?si=AtpxkLkWfolEMh9r
I made a landscape material, which works fine, but the Polygons are subdivided into Quads unlike in the tutorial, I asked him in his discord about it and he didn’t know how to help as everything seems to be correct. So I wanted to ask just here to see if anyone knew how to help

This is the material: