Tbh instagram is just a shithole because every post is someone flexing their influencer deal, trying to sell you some bullshit.
The rest are just true ads hosted by facebook (as far as i’m aware, since you can’t advertise on instagram without a facebook account).
I’m using an adblock on firefox and my internet on my pc is decent, it actually feels like i’m using the internet compared to it using me to shovel ads into my face.