IMPORTANT: this issues appears to be fixed per Blender 2.91.2 https://www.katsbits.com/smforum/inde...
Using 'pro' AMD graphics may mean objects/materials in the 3D View being rendered grey/gray and/or displaying a 'hall of mirrors' (HoM) effect. Temp fix applies to Eevee engine and AMD only.
#AMD #blender3d #Eevee