After a fairly long waiting period, Microsoft's foldable smartphone Surface Duo will receive its first major OS update in the next few weeks, after the Android 11 update was originally scheduled to be released by the end of 2021.
https://www.notebookcheck.net/Microsoft-says-the-Android-11-update-for-Surface-Duo-will-be-released-in-the-next-few-weeks.589922.0.html