Samsung logged me into a random email that i have no access to in my brand new s25

Hello, I was setting up my device today, and when creating my Samsung account, it automatically created an account using my father’s old email address, and I could not change it. My worry is that if I reset⁹ my device or something like that, it would ask me to log into the old email. I did set it up with my Google account too, so if something happens with my device, can I just use my Google account?

This has nothing to do with the smart home platform SmartThings.

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