Logic, universally true or not?

Many people, once including me, consider logic to be a universally true concept. This is because it is separated from the physical world and does not make any assumptions about the physical world. Hence, it is universally true, regardless of physical uncertainties such as relativity, the correctness of our observations, the existence of multiple realities and so on. But is this really the case? Lately, I’ve been having some doubts about this, that I’d like to share with you.
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