Bring back the old deffered/early vibrant from beta 1.20x

Please bring back the Deferred Technical Preview as an optional advanced graphics mode. The original deferred rendering had features like point lights, volumetric lighting/god rays, PBR materials, and atmospheric fog that gave Minecraft significantly more depth and atmosphere. Vibrant Visuals looks good, but it doesn't feel like a replacement for the original Deferred Technical Preview. I’d rather have both as separate options instead of losing the features that made deferred rendering so impressive.