Wccftech published a review on the Sonic Superstars
A quote from the article:
I didn't think that Sonic would be returning to the 2D formula this soon, especially not with the hit that Sonic Frontiers managed to land. However, it seems as if the Sonic Team wanted to try their hands at it once more as Sonic Superstars was announced with some fanfare, bringing back Classic Sonic.Sonic Superstars Review