That's discomforting. My practice of sprinkling em-dashes like salt on a salad dates from my early days on various video game communities' forums. They comfortably mimic interrupted speech in writing. I hope I won't have to soon defend myself against accusations of AI usage just because I belong to the minority that read The Punctuation Guide[0] or a related resource.
[0] https://www.thepunctuationguide.com/em-dash.html