As Netflix's Sonic Prime runs through its second season, one of the things fans are most interested in seeing is how Sonic and Shadow interact. Admittedly, the first season didn't do much with the duo, focusing on the blue hedgehog instead. Sadly, as Sonic tried to save the Shatterspace and rebuild the Paradox Prism using the crystal shards, Shadow was just stuck in limbo.
Source:https://www.cbr.com/sonic-prime-season2-shadow-no-justice/