My model of N20 Ultra Snapdragon version updated to Android 11 with Samsung One Ui 3.0 Security Patch 1st January 2021 on the 4th of February 2021.
I'm awaiting the following x2 updates others have received.
Updates are sent out in batches dependant on region, phone model, serial / build number and a phone being branded i.e supplied by a Network can affect Updates too.
I hope you get it soon.
Current Phone ~
Samsung Note 20 Ultra 5G SM-N9860_256Gb SnapDragon 865+
Samsung One Ui 3.1/ Android 11.