The rumored Series X refresh doesn’t have a disk drive.
It’d be hard for Microsoft to remain committed to game preservation in that way without them.
To me, this sounds more like they’re looking at Nintendo’s virtual store playbook and wondering how many times they can sell the same games to their customer base.
If I remember it correctly, everything in E:D is procedurally generated, but every player has the same seed so it generates everything identically. That’s how they keep the installation a manageable size.