If the argument is exclusivity defines whether a console is redundant or not, then yes, Xbone became redundant in the moment Series X launched
It was redundant even before as it's games were also released on PC.
And that's still true with the XS, if you have a decent gaming PC, XS won't deliver you more games
The Nintendo eShop rating Thread: http://gamrconnect.vgchartz.com/thread.php?id=237454
The Steam/GOG key gifting thread: https://gamrconnect.vgchartz.com/thread/242024/the-steamgog-key-gifting-thread/1/