Most web page latency problems are not network problems. They're the pages that load too many crap items. Look at the browser's display of network transactions. Pages with little content are making over a hundred transactions. Does anyone really need 34 trackers? But it takes a lot of round-trips to load all that crap.

For a while, Google was penalizing slow-loading pages, but that got tied into AMP, which everybody hated.

It only takes 25 Mbps to stream 4K TV, after all.