https://wccftech.com/xbox-series-x-compatible-with-all-xbox-one-accessories-designed-for-xbox/

Microsoft is going all-in on software backward compatibility with the Xbox Series X, but what about accessories? Will your favorite Xbox One headset or third-party controller work with the Xbox Series X? The answer is probably yes! Microsoft has unveiled the new “Designed for Xbox” label, and is promising most officially-licensed Xbox One accessories can be carried forward.

Xbox Series X, Series S “Relevant” News to Come Before Tokyo Game Show 2020 Showcase – Rumor