Ventura 13.2.1 Strange Install Issue

[Eccentric Arcanist]

I recently got a new MacBook Pro 16-inch M1 Pro which I fully setup last week. Today I checked for updates and it said that Ventura 13.2.1 was available. I clicked update and noticed that the download size was around 900MB. After it downloaded, I got a notification saying the system would restart and I clicked the 'restart' button in the notification bubble to do it immediately. But nothing happened. I waited and checked to see if anything was hanging but it wasn't. I then decided to restart from the menu bar and it sort of seemed to trigger the update but within seconds I was back to the login window after briefly seeing a progress bar on a black screen. After this, my screen was flooded with app windows even though none of the apps had open windows before the update attempt. Photos also said restoring which it seems to complete okay but made me worry. I then went to check for updates and once again it said the 13.2.1 update was available. I clicked install and this time the download size was 1.9GB. From there everything went smoothly and update installed properly. I just don't understand what happened the first time round. Does anyone recognise the behaviour? Should I be worried and somehow perform a system check?

 

[chabig]

If it boots there is nothing to worry about. You probably got a firmware update the first time.