TBH my last flu vaccine was something like 25 years ago (I am not antivax, I am just too lazy to get it) and I had "true" flu (not seasonal colds or covid) precisely once since then.
My doctor friend doesn't get flu vaccine even when recommended, because, to quote her, "in my line of work, I was already exposed to everything ten times at least". She works as an ORL expert in a big hospital, so she is constantly staring down some sick throats.