Jack Dorsey Satoshi is not Nakamoto. Satoshi Nakamoto is a group of pseudonymous individuals or individuals who published a whitepaper of bitcoin in 2008 and launched the Bitcoin network in 2009. Satoshi’s true identity is unknown so far. On the other hand, Jack Dorsy is the company co-founder and a technology entrepreneur. He is a huge supporter of Bitcoin, but he never claimed he was Satoshi Nakamoto.
Satoshi Nakamoto has an estimated 1 million BTC, which has never been transferred. If Jack Dorsey was Satoshi, he would have published it or used it somehow. Satoshi has been publicly active since 2010, but Jack Dorsi has been known in the technology world since then.