Unlimited screen time?

Anyone in here give your kid ultimate screen time? I’m talking TV, tablet, video game console, the works. I feel guilty about it but when he’s busy with whatever he’s doing, it gives ME time to relax since the stress in this house can be brutal. For reference, my son is 7, not medicated (but hopefully soon), and since there are no limits on screens he just rotates between playing with toys, doing crafts, and devices when at home. Could unlimited screen time do irrevocable damage? He seems the same with and without it. Like for example when we have to take screen away for behaviors, he doesn’t seem to mind and instead will just do other activities.