I am in the process of setting up my first phone with GOS and would like to use my existing SIM card from my current phone , but don't know how much this compromises the "de-Googled" aspect. Besides privacy, which for now I am still debating how i will proceed with SIM, I have no reason to change my current plan and that is why I would like to reuse the card.
I am new to the privacy world and know a SIM card is tied to my identity, but i have not seen any explanations yet about how much Google can piece together when reusing a SIM card.
Will Google see the mismatch between the anonymous account i made to set up Play Store, and the SIM identity, for example?