Farts are universally funny. Like sex jokes, they transcend time and language.
In fact, the oldest joke we have discovered was a fart joke:
Something which has never occurred since time immemorial... A young woman did not fart in her husband's lap.
Compare that to a different joke from about 200 years later:
A dog entered into a tavern and said, 'I cannot see anything. I shall open this one
It doesn't matter where or when you're from, nor does it matter what language you speak, farts are funny and will continue to be funny forever.
not necessarily the same number of farts though. think about it; if you are known as being pro-fart and think farts are funny, farters are going to gravitate to you and are going to fart at you. if you're vehemently anti-fart and make that clear to people around you, they won't feel comfortable farting around you. these fart lovers ain't tricking me again. keep your bodily gasses to yourself at all times
One could argue if you have those "not playing along" vibes in general on top of the flatulophobia, they might go out of their way to keep them in and seek you out just for extra fun. Behold how the funny stacks:
Fart
undesired fart
undesired stealth fart
undesired stealth fart one cannot really address
undesired stealth fart nobody can really address with a layer of spite and schadenfreude
And don't forget the adrenalin junkies trying to get away with farting on fart karens