The uncertified status of Gemini is troubling.
As mentioned by AndyM, I searched Play Store for "Android app Device ID" and installed one of several such 4+STARS rated apps listed.
Specifically, I installed "Device ID Manager" on my Samsung phone.
It shows the following device info on one page:
1) Android Device ID
2) Device Name And Model
3) Google Service Framework ID(GSF)
4) IMEI
5) Android Version and API Level
6) Phone Number
7) Google Account

WIFI MAC Adress
9) Bluetooth MAC Address and Name.
Somehow such an app should be installed on a Gemini by someone in OZ, who knows how to get around Google PS, and who might then report their device's info back here, if knowing that helps resolve this uncertified concern.
Ifanafi
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https://www.xda-developers.com/google-block...-rom-whitelist/
According to this update on XDA, manual registration for custom ROMs actually requires "Google Service Framework" No. not Device ID (Android ID). Your GSF number can be found easily using the Android app "Device ID" or similar.