No, I don’t think Sonos can read that location, as it really isn’t a network ‘share’. But there’s certainly nothing stopping you from trying a test. 

@Bahamut3210 

Using your Xbox Series X as a network share for media files isn't directly supported. While you can store music on it, it won't function as a traditional network drive for access by other devices like a NAS.

If you're looking to access music across your network, you might want to consider setting up a dedicated NAS or using a media server software on a computer instead. Have you looked into options like Plex or using a home server setup? These could provide a more streamlined solution for your music library.

You can if you flip your Xbox into dev mode, but that is an expensive way of running a file server.

Thanks for the responses folks