Notable examples for me are “smart working” in Italy to refer to “work from home” and “maintain cleanliness” in the Philippines instead of “keep clean.” Both phrases irk me every time I hear them.
I think every language learner should go through a list of false cognates [1] to tighten up their dictionary once they reach a certain level. I’m learning Spanish now and the amount of words that seem identical to Italian but have a different meaning is astounding.