Bayer filter interpolation?

Question

Image processing

The following question arose, maybe someone understands this topic, or read some research. Even better if there are links to the source. Actually the question is the following: what modern Bayer filter interpolation algorithms currently exist ? What I immediately found on the Internet are algorithms. which separately interpolate for each color (there are different variations, but they come down to this). But intuitively it seems that this is not the case: why do we use only 1/4 of the image points when interpolating red or blue? At each point where interpolation is performed, there is some more information about what brightness is at this point, albeit in a different spectrum. Shouldn't this information be used? Or did I not find something?

Answer 1

Imagine blue-green stripes. How do you interpolate red using intensities in other colors if red is not there at all?
It's better to immediately convert the image to RGB, as the camera does.