For a while now, Samsung's been doing this thing where it sometimes releases a security patch before even Google gets round to it. It's usually at the very end of a month when a specific Samsung device might get next month's security update, but the distance keeps growing. Case in point: a few hours ago, when it was still October 25, the company has started rolling out the November security patch to Galaxy S21 Ultra units purchased in Germany. This is a new record, releasing such an update six days before the actual "security patch level" you'll have once you apply it - that will be...
Source: https://www.gsmarena.com/samsung_galaxy_s21_ultra_is_already_receiving_the_november_security_update-news-51577.php