Earlier quoted context omitted.
Have you tried color blindness glasses (e.g. EnChroma)? I am not familiar with them but some reaction videos were pretty heartwarming.
Those videos are fake the glasses don't do very much. https://www.youtube.com/watch?v=RY-NF_7R-pk&t=559
On the other hand green lights lose their green.
On a day to day basis I can functionally see red and green, but sometimes when a red or a green is next to a brown I cant distinguish them.
And versions of red that regular people might have a hard time distinguishing would be impossible for me to distinguish.