This tracks. I recently upgraded from 100mbps to 500mbps (cable), and barely anything is different— even torrents bumped from 5MB/s to barely 10MB/s. And there's no wifi involved there, just a regular desktop on gigabit ethernet.
Same here. My ISP recently did a promo to try out 1G/1G for free for a few months. I decided not to buy it after the free trial and went back to my old 500/200 line instead of paying 40% more. Yeah, it takes a minute longer downloading the latest LLM from huggingface, so what.