My worst example was the word GIF pronounced like the peanut butter instead of properly as in Graphical. It’s worse because Amanda Montell was writing a linguistics book about the history of language and words.
Recent example was “eschew” which is pronounced Eh-shoo but the narrator said “Eskew” and it confused me so much I had to Google it to make sure I hadn’t been saying it wrong my whole life. What exmaples have you found?
But not all acronyms are pronounced as a word. You don’t say Fibby for FBI. This is English much like Vietnam there are no rules here.
It’s only an acronym if it can be pronounced. If it can’t, like FBI, then it’s just an initialism.