I think I just solved the problem. The new windows update tampered with a display setting.Right click from the home screen and click on display settings. Click on the tiny arrow beside the brightness slider to reveal the 'Change brightness based on c...

I'm also experiencing the same issue on my Asus ROG Zephyrus G14 GA402RJ (2022). It just started yesterday, and I'm suspecting it's the windows update (24H2) I did in the early hours of yesterday. Did you recently update your windows as well?