Breathing hole = poop hole(?

[thedragoninvasion]

I've heard a lot that snails poop and breath from the same hole, i've heard this from snail youtubers, seen it on posts and articles, and other sites, and i totally bought it like, sure why not.
But yesterday i had a good look at one of my snails pooping and it's totally a different hole, sure it's near the breathing hole, but a different one nevertheless.

Why is the breathing hole = poop hole so widespread, and is it actually true? was i just seeing things?
I may attach a picture in the future, if i catch one of snails pooping again lol

[jakeistragicuwu]

Personally I've never heard that but maybe it's because the holes are so close together