Yep completely agree.

I lived with about 5 people and our internet was 500mbps and it was more than enough.

Looking at the network monitor the only need for anything really above 100mbps was when people wanted to download something. For daily needs, surfing, browsing, the odd download you don't need a lot. And that's with everyone streaming, scrolling, gaming etc concurrently.

Totally agree - having been telling this to friends for years, to no avail.

Btw, what network monitor are you using? Was it just a diagnostic tool in your router's admin page? Or is it something special like dd-wrt? Because seems like it's kind of hit or miss if a router's stock admin includes a reliable network monitor.