Would it bother you if your gf would still follow her exes friends on instagram?

Hi yall!! ⬆️ question. Me and my gf are dating for 2 yrs now, she and her ex broke up badly, but my gf still follows her friends on instagram, friends on snapchat and friends on facebook too.. i didnt pay more attention to it until now, i mean, of course sometimes i was thinking about that why is she still following them.. but bruh should i ask her to delete them from everywhere? ( my gf and her exes friends didn’t really talk ) should I just let her follow them??? I need advice, thank you!