No, it's not. Your focus will probably take a sharp turn to another thing, but because you're not entertained. Here... it's probably because ADHD doesn't mean you'll fail, even if untreated.
I think social media today makes you think you have many conditions, when in fact you just have normal behaviors. You don't need to have ADHD to get distracted, especially if your brain is trained to pay attention to a thing for 15 seconds max by said social media.
Try reading paper books, or focusing your eyes on a candle for 5 mins a day, your attention will improve.