I download/stream something like 1 TB per month total with Verizon Fios 300 mbps down/up. The bulk of this is 4k streaming apps and YouTube TV/Netflix/Hulu. My partner has T-Mobile 5G Home Internet (150 mbps down/ 20 mbps up) and uses about 900 GB per month, also mostly 4k streaming on YouTube TV/Netflix/Hulu.
The percentage for games is quite low for my household. It was propped up a bit while I was playing FS2020 daily (since it streams data all the time, in the US up to 150GB a month where the most detailed data is) yet I mostly play physical games and small digital download games. FS2020 is by far the largest game I've downloaded. (No physical edition and also no point to a physical edition)
Most is video streaming from me, my wife, two kids. Luckily everyone is still happy with 1080p streaming as we're already over 1.2 TB a month. If all that streaming was done in 4K we would probably be looking at 3 TB monthly.
I got my oldest into the Lotr extended edition, 11 hours of physical disk viewing, save the planet lol. Much better than let's play you tube all the time!