Do they not have trumpets where you live? Did "tooting one's own horn" imply breaking wind during the annual performance review? Far and away the most common use of "toot" is playing a note on a horn.

At one point, Gargron, the main guy behind Mastodon, even mentioned using a trumpet as the basis of Mastodon's logo branding: https://github.com/mastodon/mastodon/issues/962

"Toot" also has the double entendre. In all my life, I've never heard anyone outside a playground use it to describe flatulence. In my personal experience, it's almost always been about the musical notes. I'm not in a band or otherwise around musicians more than the average person, either.