You can now purchase Early Access Supporter Packs on Xbox. These packs allow you to claim all microtransactions in Path of Exile 1 and grant you access to download Path of Exile 2. However, you won't be able to launch and play the client until the game is released in Early Access on December 6th.
The Twilight Order Foil Reliquary Submission can only be bought in the in-game store after purchasing the Liberator of Wraeclast Supporter Pack.
Supporter Packs for Sony platforms (PlayStation 4 and PlayStation 5) will be available starting December 6th PST, coinciding with the Early Access launch of Path of Exile 2.