The Samsung Galaxy Note 20 Ultra will still receive monthly security updates for the time being
But it appears that Sammy was forced into changing its mind. Looking at the Security Updates section of the Samsung Mobile Security page today reveals that the Galaxy Note 20 5G, the Galaxy Note Ultra 5G (and the non-5G variants), and the Galaxy S20 FE 5G (and the non-5G variant) have been returned to the section titled “Current Models for Monthly Security Updates.”
The reason why this might have occurred is that the Galaxy Note 20 models and the Galaxy S20 FE handsets were launched in the second half of 2020 as opposed to the Galaxy S20 devices which hit the market during the first quarter of 2020. As a result, had Samsung moved the Galaxy S20 FE 5G, Galaxy Note 20 5G, Galaxy Note 5G Ultra 5G (and the non 5G variants) to quarterly updates, these phones would not have received the full four years of monthly security updates that Samsung had promised they would receive. However, by the time the fourth quarter rolls around, Samsung will have met its four-year obligation for these phones and could revert back to quarterly security updates.