Optic Reticle Projection/Eye Relief

Quick Tl;dr:
Project the reticle in scopes, it makes shooting with optics far more realistic, far easier, and much more fun.

Full explanation:
Currently the magnified optics are simply a screen inset in the optic with a shadow around it, which is both unrealistic and incredibly difficult to use as if your eye is not perfectly in line with the reticle, what you see in the reticle is not what is beyond the scope relative to the player's eye, making target acquisition difficult and aiming in general unintuitive.
Shooting with optics now feels like shooting with a digital camera on top of the gun instead of a scope, sniping feels horrible, and the 2x optic is practically unusable with how difficult keeping the reticle on-target is.

The solution is a projection of the reticle, setting a fixed size of the reticle bounded by a black void, and no matter how far the player's eye is to the lens, the image stays the same size, and no matter the distance from the center, parallax keeps the reticle roughly in the same location, just like the red dots and holographic sights, but with the PiP image instead of the reticle. This is how real optical sights operate (to an extent, but we're just trying to get it close enough), it's how many other games do optics (H3VR, Onward, Pavlov, etc.), and most importantly it makes using optics feel SO much better to use.

The performance cost will be minimal, infinitely less than the PiP projection itself at least, so Quest performance will not be an issue.

It also should be able to be disabled or altered in the settings as well for anyone who wants the old system, or a differently sized reticle for the distance they prefer to keep their eye at in relation to the scope.

An addition to this system would be eye relief: a shadow that disappears when the eye is in line with the reticle and occludes the reticle when the eye is not in the correct area. This isn't required and would likely be much more difficult to implement. It would go even further to make scopes more realistic, but unless the optic projection is more accurate to real scopes (where the further away from the center your eye is the further the reticle is from the actual center of projection) eye relief is just flavor.