Are these REALLY the characteristics of a business account?

Hi, I used to date Mr Supranational 2019 Nate Crnkovich, who is currently faking a relationship with Dallas Cowboys cheerleader Kelcey Wetterberg (never mind he could've never even met her in the first place, because he was living in CA and she was living in TX the whole time, so it doesn't get any faker than that). Anyway, I was just chatting with a friend of his who has told me: "Some time ago, Nate set up his IG account as a business account to promote products, which means it's practically his PR team handling it now, not him. And, since he doesn't follow you, all your comments on his feed will be invisible!". Now, I don't even know whether to believe that, especially because the guy does upload stories every now and then (they're about his daily life, like training at the gym or babysitting her fake GF's toy poodle, so I don't think it's his PR team's work) and he does post very "informal" replies to many of the comments left on his page (like "Sup bro" or something).

So, do you think this guy is right? As soon as someone sets up their IG as "business", ALL of their posts and ALL of their captions and ALL of their replies and ALL of their stories are posted by his PR agency? And is it true that comments from people who aren't followed by them are automatically invisible? I've looked up the characteristics of a business account and nowhere did it say this! I think it was just this dude messing with me because of my past relationship with Nate (he considers me a psycho and has said that to me many times)