One way to tell if you have HW3 used to be if you had 2019.7.102 or 105 - those versions were HW3 exclusive.
2019.12.1.2 rolled out to HW3 as well as older APs. However, since you picked up your car in May, you very likely have HW3. I picked up mine on April 23, and I had 2019.7.105
There is...