Why is Hyper Sonic non-canon?

I never once clearly understood why Hyper Sonic is considered non-canon in this wiki, can someone please tell me? Didn't it made it's video game appearance in Sonic the Hedgehog 3 & Knuckles? Isn't Hyper Sonic literally a more powerful version of Super Sonic, and game Sonic's most powerful

I've been reviewing the endings of Sonic 3&K and if the super sonic ending is canon, why does the hyper sonic ending (extra end) have that Knuckles cutscene? : r/SonicTheHedgehog

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Is it official that hyper sonic isn't canon?