The Galaxy S21, S22, and S23 series are all eligible for four years of Android updates from Samsung. S23 devices, for instance, should be updated through at least Android 17.
Samsung Galaxy S23Samsung Galaxy S23 PlusSamsung Galaxy S23 UltraSamsung Galaxy S23 FESamsung Galaxy S22Samsung Galaxy S22 Plus
Samsung Galaxy S22 UltraSamsung Galaxy S21Samsung Galaxy S21 PlusSamsung Galaxy S21 UltraAll future Galaxy S-series phones
Samsung Galaxy A- and F-series