> I feel intuitively that screen time can dull the senses, imagination and creativity.

It does so in adults, and they already have experience. What does it do for the kids that are yet to experience life at all?

>But there are educational programs also or shows with trips and constant stimulation from zoos or museums, which I think are good.

Stimulation, but not experience. We keep filling up their minds so they aren't bored, but being bored is the core of creativity, as well as dealing with it being the only way to mastery.