To translate further:
BEV - self explanatory never mind
NGDV - Oshkosh Next Generation Delivery Vehicle, The new mail truck that looks like a duck
LLV - The Grumman Long Life Vehicle, the classic mail truck.
and as a bonus
FFV - The Ford-Utilimaster Flexible Fuel Vehicle, the early 2000s mail truck that looks like the LLV that you buy from wish.
I’ve not used windows regularly since XP but I recall being very confused that the keyboard layout setting defaults to being per-application rather than syatemwide. Don’t know if that’s how its still done and I have no reason to care.