X Box Live Account Not Visible Upon Link

Microsoft-> Steam Link

Microsoft Live account is no longer visible on my Arks Player ID via Steam.

that is not a issue is how it works, Steam doesn't show your account ID or anything in the title screen like Microsoft does however if you log in using MS Store method it will show

It should be said that this is also consistent with a lot of online-capable games available on both Steam and Windows 10 Store.

Games on the Windows 10 Store show it since they usually allow you to swap the active account being used from the title screen.

In comparison, games on Steam use the account the game is purchased or bound to.