Board Thread:Theories and Speculation/@comment-26479810-20191214162345/@comment-35409024-20200203065213

I think it's pretty safe to assume they don't have the exact power Hagoromo gave them. After all, their marks (the power he was stated to give them) disappeared, returning to him.

As for the abilities they still have, obviously they're mutations. After all, Rinnegan is a Kekkei Genkai. Which means, Sasuke's DNA went through a mutation after getting Hagoromo's Chakra. Since a kekkei genkai is an anomaly of the DNA. It's not like Sasuke got Hagoromo's Rinnegan, he has an entirely different one that was awakened when he got the Chakra stated to be needed, to awaken it.

There is plenty of evidence showing this. The marks that symbolize Sixth Paths Yin and Sixth Paths Yang, disappeared. Naruto's Sixth Paths Sage Mode's eyes went back to their normal coloring after the war instead of the yellow he had when he had Hagoromo's Sixth Paths. Naruto's form also looks different. Sasuke has a unique Rinnegan with it's own unique abilities.