I was expecting March security patch but Samsung gulf thing. Installing right now.

What is your phone model? is that s21 ultra?

Yes i know but what matter is the update service they have promised on the lunch event  monthly update means monthly update, it doesnot mean january update on may..I know about android open source and ios operating system , i have used android samsu...

Apple will give you premium service. even its 5 year old flagship device it will get updated at same fking time. My xs max and 14 plus gets update at same time but s21 ultra wait wait wait 

I am thinking about that too.. For better support