Shader or just it is just a texture

Unity Engine
1

Hi everyone, I have seen the following in multiple tutorials/videos and I would like to re-create it (or get it). If I need to create it from scratch what would be the best way to do so?

6356073--706935--D118AE0E-05F5-486D-8F9B-B66691701B47.jpeg
6356073--706935--D118AE0E-05F5-486D-8F9B-B66691701B47.jpeg1220×662 37.8 KB

Thanks in advance,
Fm

2

A plane, curved in the middle (could do with something like ProBuilder). A checkerboard texture (included with Unity, i.e. Default-Checker-Gray). Vignette (Post Process), or a light (either Spot or Point).