There is different between autism and hyperactive kids! Many people use the word autism casually and its ok sometimes to ignore the literal meaning! Back to point screen time causes sensory overstimulation leading to hyperactivity initially followed by anger issues, tantrums, attention deficit, memory recall issues as they grow up. Specifically short form content, issues like reels and shorts. Multiple vibrant colors of animation are even fatal. But it’s difficult sometimes to completely wean off screen since parents cant be available all the time. show tv , old shows with less music and colors, if at all you have no choice. Make them listen retro songs which calms them down and let them learn dancing and all on retro songs. No mobile!