The apparent difference is security update only vs newer Android OS version. Most non flagship Samsung shipping today with Android 11 will only get Android 12

The apparent difference is security update only vs newer Android OS version. Most non flagship Samsung shipping today with Android 11 will only get Android 12 then security updates only. So technically Samsung only provide 1 year, if security update counts then Apple is still supporting iPhone 5s, a phone released in 2013.