Indeed misleading information. Let's clear it up:
Every Meteor Lake will have the same graphics chip based on the same new "ARC" graphics. The only difference between them is the amount of Xe-Cores:
- The U-versions will get 4 Xe-Cores
- The H-versions will get 7-8 Xe-Cores
Because of inexplicable reasons however, Intel demands that those with lower than 7 Xe-Cores shall be named "Intel Graphics" and not "Intel ARC graphics". Which is stupid, because they are technically still the same architecture and graphics chip, and should benefit from the same driver optimizations.
Besides, there is no "IRIS Xe" graphics anymore on Meteor Lake. "IRIS Xe" was a different architecture and only exists on Raptor Lake or predecessors.