Just a day after the One UI 3.0 beta for the original Galaxy S20 trio went public in South Korea, Samsung started rolling it out to users in the US as well. Soon, the update should also reach Europe (Germany, Poland, the UK), India and China. Going back to the US, only T-Mobile users seem to be getting the update right now, but that's likely due to the staged nature of the rollout. You can use the Samsung Members app to subscribe to the beta channel and get this update. You will be trying out Android 11 + One UI 3.0 ahead of other users, the changelog is pretty extensive so there is a lot...
Source: https://www.gsmarena.com/samsung_galaxy_s20_s20_and_s20_ultra_in_the_us_now_also_getting_one_ui_30_beta-news-45669.php
