The use cases might lag behind the infra. All the services we use today are designed around the constraint of lopsided upload/download bandwidth on broadband. If you build it, it will come.
I was curious, so I just went to download the Windows 11 ISO from Microsoft. That is capping out at about 70 mbps. Downloading an almost 7gb file in 2 minutes.
Don't get me wrong, I am not saying "oh we don't need this speed". But clearly things have not been changing. We have been past my current download speed from Microsoft being a minimum for a while.
I mentioned Xbox getting to 500, so yeah there are some that are. But you're not downloading a game every day, at least not ones that are 50gb and won't just finish very quickly.
So that is 2 things that actually seem to utilize the speed that I can get, but it doesn't seem like the rest of the internet is anywhere near this capability and hasn't really been changing much.