As others have said, totally normal.
Just wait until you supercharge for the first time! On some Model 3's, (including mine) it sounds like the car is shooting at you (it's not, so don't shoot back) while supercharging.
That's not really an exaggeration. My car pops and bangs so loud while supercharging that it startles other Tesla drivers charging at the station. I've had several guys even ask if my car was broken.
From what I've heard, newer cars don't pop and bang quite as much/loud as the older 3's, but they still do make their presence known while supercharging.
BEV's have a totally different sound set of "normal" sounds vs ICE cars. Give it a few months, and you'll get used to them.