I've decided that I'm going to get a Pixel 6a to start using GrapheneOS. However, I was hoping for feedback on how to purchase the phone in the US and then add my existing SIM card/number to it. The simplest option would be to order it directly from Google as a factory unlocked phone (e.g., using a Privacy.com credit card). However, then Google would be able to tie the phone's IMEI with my address and name. What privacy risk does this pose? Since Google won't have access to the IMEI after the purchase, what should I expect them to do with this information? How could they use this information for marketing or other purposes? I plan on using my existing phone number, so my carrier will already be able to associate the IMEI with my identity.
I'm excited to join the GrapheneOS community soon!