We all use exactly the amount we need to. I'm not generating much to back up and don't run any services reachable from outside.
That and my numbers are more standard network graphs of capacity in use at any one time rather than total throughput.
Yeah I'm definitely not a typical case. As I'm always at home I spend a lot of time browsing photo sites and in that case I end up using more because instead of waiting for a photo to load, its practically instant, so naturally I end up browsing faster and using more. When I get into a fibro-fog I can spend hours on this as I'm unable to focus on anything else.
Also if I see an interesting YouTube video I'm much more inclined to archive a local copy as it wont saturate my connection while doing so. Its easier than fighting with them constantly adjusting the default to 480p. Plus I'm a lot more inclined to experiment with GamePass games now they don't take so long to download.
I'm also more inclined to just leave torrents seeding for the same reason, it has zero impact on my other usage.