Should you put lube behind your brake pads?

ive watched countless videos from Chrisfix who has 5million subscribers to other videos where they put a little bit of lube on the back of their break and and on top and bottom where it rides the calipers for anti squeak. My mechanic friend and others are telling me no I shouldn't, brake dust can accumulate. ... show more ive watched countless videos from Chrisfix who has 5million subscribers to other videos where they put a little bit of lube on the back of their break and and on top and bottom where it rides the calipers for anti squeak. My mechanic friend and others are telling me no I shouldn't, brake dust can accumulate. Made me look like a fool as they all argued against me while i told them I've seen countless opinions online from amateur to career machanics saying to use lube. Which is right? And yes, I agree that since car factories dont come with it why should you but are the online opinions ive read wrong then? your thoughts?
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