It can be hard to interpret noises recorded by phones, but if you are lucky it's a bad cooling fan motor. Have the dealership (or a mechanic, or you, if you are mechanically inclined) briefly disconnect each fan, and see if that kills the extra noise.
Brilliant Silver 2021 Leaf SV40 W/ Pro Pilot & Protection
2009 Vectrix VX-1 W/18 Leaf modules, & 2 lithium E-bicycles.
BAFX OBDII Dongle
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.