There is no scientific consensus on whether video games are helpful or harmful. The only way to find out is to try a screen fast.
How much screen time is too much? Any screen time that gets in the way of healthy development.
Limit your sons screen time by controlling access to his devices and the internet, removing screens from his bedroom, having a screen time schedule, and creating a family screen time agreement.
Connect with your son through memes, video games, music, and his interests.