What changed for me is that my home internet provider (Comcast) implemented an overly-burdensome impossible data cap that I can only get rid of if I agree to use their router with deep packet inspection, ad injection, and more.
I do wonder if they're sucking up LAN traffic data too, though, some of it which might be unencrypted, like smart devices talking to each other.
It's incredible bullshit that they can pull this crap, but... well, at least it's possible. Here, anyway. Dunno if they offer that everywhere.