Main character has an intellectual disability

So, the other day I was thinking about how people with differtent intellectal disabilities would live in different universes and now I need a fic where that is explored.

I don't care about who the character is, where or when it is set... just something in which the whole thing is realistic with how other characters treat them, how they treat themselves...

I don't know a lot abouit it but I found this ⬇️ in google so maybe something like it in regards of severity?

Mild. People with this severity level have an average mental age of between 9 and 12. Their disability may interfere with learning or complex tasks. However, they can often work around these issues, especially with specialized interventions and assistance earlier in life. They also often work and live independently. About 85% of people with intellectual disability have this level of severity.

Thanks!