My understanding is the Orthodox church rejects Christ’s divinity.
That is incorrect. The beliefs of the Orthodox are similar to those of Catholics. There are some significant differences, especially around the status of the pope, but that should not be a topic for this thread.
https://en.wikipedia.org/wiki/Eastern_Orthodox_theology#:~:text=Eastern%20Orthodox%20Christians%20believe%20that,pre-eternal%20Son%20begotten%20of
Eastern Orthodox Christians believe the Word of God (Greek: Λόγος) is one person in two natures, both fully divine and fully human, perfectly God (τέλειος Θεός) and perfectly man (τέλειος άνθρωπος) united in the person of Jesus Christ, in a unique event known as "the Incarnation".