If you see, after S21 launched with One UI 3.1, Note 20 series received it, then S20 series received it, today Note 10 series received it, so S10 series is next. The update will be coming in a week or two.
Dont worry mate, they are not treating S10 series bad like midrangers. You will get oneui 3.1 in March as per reports. Think about S20 series, we got it just last Tuesday. I felt same on s20 series. That time still now Samsung is updating their old phones quite faster with security patches on time when compared to S20 series. So i would thats bit extra excitement that still after these many updates you guys are complaining like this. Think about us. Our priority updates was low in first year that was 2020. We get delayed updates every month. Sometimes they skip us an month's update. So they have been doing thisunfair tricks on S20 users since very first year, so think you guys just got lucky with your on time updates. (Im talking about Indian team (Global ones gave on time or early updates and it was given full priority) Like always Samsung is not apple to provide a version update on the same day to all the devices