Yeah, we regularly have to update 4 iPhones and 3 iPads via WiFi now. I'm going to start downloading apps once with iMazing and use that to install them onto the devices - just have to read the manual.
Anyways, by 9/25/19 I had only used 570GB of my 1024GB allowed. Then my iTunes and iPhotos got messed up on iMac and I downloaded about 150GB of stuff that needed to be re-downloaded. Then my Dropbox was constantly syncing on my MacBook and I had to sign out and remove my dropbox folder, then sign back in and let it sync. By the 27th I was up to 775GB used. I'm thinking, "No problem. I only use about 20-25GB a day, I'll be fine."
Yesterday, 9/29/19 my son had me update the Xbox before coming home from college, and we went over our 1024 GB limit after updating just 19 Xbox One X apps! OMG 19 Xbox app updates used up 250 GB in one day!