Mmm, yeah, yeah. I think in real life it's more like some girls having a crush on a guy, you know? A secret crush, I guess. But they're not as invasive as those girls portrayed in manga, right? I think they just like the guy and admire him from afar. I think it's like that, lol. Maybe authors are just using hyperbole
The grouping is totally a thing I've seen back in highschool but the fangirling thing is something I've only ever seen twinks get
Though I do have this one cishet guy friend that gets this kind of treatment purely because he's the fluffy wholesome nerd type, the fact that he was also built like a teddy bear also helped

Guys, I'm really a homebody and don't go out often. Rarely, actually. So, I've never seen girls like that. Every time I read a manhwa or manga, I wonder if those types of girls really exist. Like, a group of girls going into a frenzy over a guy. At least in my country, no. I've seen pick-me girls, but not girls like those. Maybe the guys here are ugly, lol.
But every time there's a popular guy, he's surrounded by girls fawning over him. Is it really like that in Japan? If I were him, I'd be so pissed off by those girls sticking their noses into my business