Yes, yes, yes.
The brake pad composition can have an effect on the noise you hear, as well as the condensation
ala moisture and slight rust on surface and the opposite direction rub from the usual.
I just wanted to point out that people often damage their car w/o knowing it, then again
some dealer techs have been known to do some dumb things as well I guess.
Well, if you feel there's an issue with your shoe gear.
You have to take a look at how much of a squeak you hear, ie; is it a screech or peep?
How long does it occur, does it happen after driving for awhile, then checking again.