In fact, elsewhere in his comments to Parade, Parsons even explained that watching the prequel series has influenced his take on the character in The Big Bang Theory — which means we could see some fun changes on the horizon for Sheldon as Big Bang moves into the future.
Parsons has very publicly praised Iain Armitage (whom Parsons helped get into character) for breathing new life into the younger version of Sheldon, and he definitely seems to enjoy working on both of the sister series.
Despite the differences between Jim Parsons and the younger Sheldon, the actor has also made a point to highlight the fact that he pretty much has nothing but good things to say about the new series inspired by his tried-and-true take on this character.