The best way to determine MY2020 or above (MY20+) is to use the APIM Interrogator Utility to determine the APIM part number, firmware calibrations, and assembly number for APIM/screen assemblies. This however, is not completely failsafe as there are service parts being manufactured for older version APIM’s that have the newer eMMC with older exterior hardware. This has been discussed in several threads here. Manufacturer dates of late 2019 and on should always be suspect even if the part number of the unit indicates and earlier production unit. For example, There are Jxxx series APIM’s being manufactured for service release that have recent 2020 manufacturer dates. Do not reformat these units as they will brick. Specifically JR3T-14G371-BJD in this case. See the related thread:
Black Screen after update from Sync 3 v3.0 to v3.3 - Ford Mustang 2018 - Ford / Sync 3 - CyanLabs Official Community
There is no relation to the APIM serial numbers vs. the MY20+ data that has been deciphered or published, although this data does probably exist in some Ford database.