There’s an updated (October 2024) Outsourcing Software Management brief from Microsoft. It adds two questions to its FAQ section: Can you take your Windows Server licences to AWS (no), and: Can you take Windows Server licences acquired before October 2019 to AWS dedicated server offerings (yes). There is, as you might expect, a lot more detail in the answers that are given in the brief.
Find this updated document here: https://bit.ly/3Z0R8PD.