kindly note that regarding your query flagship models are upgraded 3 times as
target devices should meet hardware specifications and resources for the upgrades.
Accordingly, Samsung guarantees three-time upgrades only for Galaxy flagship products(S series, Note series, Z series) after S10.
Samsung is further reviewing hardware specifications and resources of high-end A series and tablet products released after S10 to determine whether to support them and will notify detailed OS upgrade policies later
