In Hebrews 1:10 Jesus is being addressed as the Creator which is God himself in Genesis

Hebrews 1 is a chapter that is addressed to the Son, which is Jesus himself. In context, if you read it, there is another person narrating what God says to/about/of Jesus. But one interesting verse addresses Jesus as the Creator, this is verse 10: And, “You, Lord, laid the foundation of the earth in the beginning, and the heavens are the work of your hands; Note that it is God here saying to Jesus these words see ESV . Throughout the Gospel book, the only Lord that was mentioned is Jesus. Moreover, the title of the Hebrews 1 says it so. In Genesis its known that God is the creator. Is this a strong evidence of the Trinitarian concept, that both Jesus and The Father **IS** God himself? (Note i used the word "IS" not "ARE" cause the bible repeatedly mentions that there **IS** only one God but is infinitely complex and not that easy to grasp) There is an non-Trinitarian answer here . I would like to know more about the Trinitarian concept on this matter.