There is also CGNAT which is used by mobile provider and increasingly on fixed line internet.
Most people are on dynamic IP's.
They’re usually not actually that dynamic. I’m on Comcast and my IP hasn’t changed since before COVID/wfh started. I know because I have to update my works whitelist for the VPC every time it does.
Even if it changed weekly, that’s valuable data. How many websites do you access in that time?
Using a common household internet access here in Germany, i.e. consumer level, one gets assigned a new IP roughly every 24 hours.
Yeah. I could get a static IP for 5€/month, but besides that everything is dynamic.
This greatly varies between ISPs. We too have such a whitelist for wfh. Some people have had the same IP for years. Others have a different IP every week, sometimes even more frequently.