Indeed but just tell me how many people bought Rs. 200000 worth of phone?very less I believe and most of them don't even know about Samsung members and some of them posts there photos in this app. How are they supposed to give feedback?

Follow the step it'll do the job.

https://forum.xda-developers.com/galaxy-note-10+/how-to/galaxy-note10-sm-n975f-official-oneui2-t3987433

But if you want to upgrade it manually I can guide you through the process.

Sir you have to download and install the Firmware manually. I recommend you wait for the official release because the beta is closed for S series in Korea and the official release is around the corner.