Dream Productions is the first show set in the same world, or perhaps, in the same mind, as the Inside Out films. Dream Productions arrived on Disney+ just 6 months after Inside Out 2 made over $1.6 billion at the box office, breaking various records. Inside Out was released in 2015 and was a massive success both critically and commercially. Since fans had to wait nine years for a sequel, anticipation was high for Inside Out 2, and the film did not disappoint. Inside Out 2 also received amazing reviews, and became the highest grossing animated film of all time.

https://screenrant.com/dream-productions-disney-streaming-inside-out-2-prequel-recommendation/