This is well documented issue with ID.4’s. In fact, it is all over EV related YouTube channels. And, no they do not charge fast at all over 80%. VW needs to stop giving away free charging with NO idle fees. A limited amount of free charging with a new vehicle is fine, but “free” needs to be capped at 80% SOC, and EA needs to start enforcing idle fees!
And yes, Chevy Bolts are a problem too, along with a few others too. But, ID.4’s are by far the biggest offenders. (Check out Out of Spec, Branden Flasch, etc.)