Leaderboard

The point is that the updates are not incremental. The weekly OTAs each time contain the full ROM, even if changes relative to the previous one are minor or non-existing. The idea behind the a/b partitioning scheme is to keep the previous version of the system intact for backup, while flashing a completely new version of the OS to the respective other slot with every update. This is to make sure one of the slots always contains a working OS, even in case of a bad flash or faulty download.

The strange thing to me was having two 22.2 updates of 1Gb each and i was not sure if i should go trough

Remember, the updates are not just what is being added... they are the whole package with the updates integrated. (They don't disturb your settings and data).