https://wccftech.com/xbox-series-x-s-short-supply-for-months-pre-order-rethink-phil-spencer/

At this point, if you haven’t already scored a pre-order, your chances of getting a next-gen console at launch is pretty much nil, but what about later this year? It seems likely the PS5 will remain in very short supply, but what about the Xbox Series X and S? Well, you probably shouldn’t get your hopes up on that front either. During an interview on the most recent episode of the Dropped Frames podcast, Xbox boss Phil Spencer laid out the Xbox Series X/S stock situation for the next few months.

All of our day-one units are at retailers, or very close to that. We've built all of our day one allocations. We know what our supply will look like, basically for the rest of the year. We're going to have more demand that supply, and I'll apologize in advance for that. […] And I think we're going to live in that world for a few months -- a lot more demand that we have supply. On the supply-chain side, it's "What can we do to get more inventory?"