If you press "P" to open the player interactions menu, and then navigate to the "Blocked" tab, you can click the button for "Manage with Microsoft account"

This links to https://aka.ms/javablocking,

However, navigating to this page shows you how to get the Xbox app. There is no way to actually manage anything on this page, nor does it explain how to use the app to manage blocked player accounts.

Expected: Either launches the Xbox app to the correct view for managing the blocked players list, or links to a better web page for learning how to do this properly.