Brightness toggle on desktop?

Hi everyone !

I just wanna know why it’s just impossible to adujst brightness on a desktop from a slider toggle ?
Have to go to the control panel all night is just so boring, by hotkey that feature could really save billions eyes…
Windows night mode is inefficient to my mind, my eyes don’t rest by changing a bit the color.
So many software can add hotkeys for their own features so I wish to understand why Nvidia can’t ? What’s the Desktop/Laptop variance that don’t allow it ?

Thanks for your answer and please tell if any way exist !

Thanks for this question. This one is best on the general GeForce forums : https://www.nvidia.com/en-us/geforce/forums/discover/
Your response will get the attention of the teams who manage this product.