This subject has been raised several times in the past.
You can suggest it via Apple's Feedback page: Feedback - iTunes - Apple
Bear in mind that iTunes is now in the autumn of its life (the replacements are already available for those who choose to use them and on recent Macs there's no option; it's the new way only). As I don't wish to speculate (which Apple don't like us to do), take that whichever way you wish.
In the meantime, if Night Light is still available on Windows 11, I suggest you try that. I don't have Windows 11, but in Windows 10 it's in Settings/System/Display/Night Light. You can set it to turn on automatically.