> G5, 20“, webcam
> Only 1 model qualifies

https://morph.zone/modules/newbb_plus/viewtopic.php?forum=11&topic_id=12759&start=105
https://library.morph.zone/Supported_Computers#iMac

AFAIK, (non-)support is the very same for both models, 1.9 GHz 17″ and 2.1 GHz 20″.