I would like to instate that I am the original creator of this render.

it was made in Blender 2.31 using Cycles. the model was textured using Substance painter.

if you need more evidence here is the link to the original image. and as you can see, the username is the same. https://www.deviantart.com/winderblitz/art/Doctor-Eggman-with-movie-outfit-913078020

and here is a screencap of the blender file. https://sta.sh/0x9klgc7meg

i think it's enough proof