Bitcoin.org and Bitcointalk.org both created by Satoshi Nakamoto but since 2020, two domains and ownership changed and separated each other. Bitcoin is a decentralized projects so there is no official website or official forum for it. Bitcoin.org and Bitcointalk.org are only parts of Bitcoin history but not all. More websites, more forums for Bitcoin will be created in future and we can use them too.
I surprised that some consider BITCOIN.ORG as a separate domain from this forum, because I read in some old posts with the BITCOIN.ORG and forum topics ID numbers. we cannot separate the history of the two domains, although the influence of BITCOIN.ORG is no longer the same as the current forum, nor the percentage of visits or influence On the lives of individuals.
15 years in which Bitcoin has achieved great changes, and I hope that we will see deeper changes in the next 15 years.