Samsung will be delivering the Android 11 upgrade to devices in Europe until September 2020, according to an official upgrade plan. The rollout of One UI 3.0 is already underway for the Galaxy S20 series, but the recently announced Galaxy S20 FE must wait until February 2021. Many of Samsung's recent flagships will receive One UI 3.0 and Android 11 from next month, though.
https://www.notebookcheck.net/Samsung-will-spend-at-least-ten-months-upgrading-its-devices-to-One-UI-3-0-and-Android-11.508716.0.html