Question about refurb phones, and location/gps?

I have a Galaxy S9, got it used/refurbished from Amazon a couple years ago. It was something like $200 and seems clean enough. I put my simcard in and it's been good to go (ATT). I did do a clean factory reboot before I did anything else, even putting the card in.

I don't leave my GPS on, or otherwise "use my location". I do sometimes use it if I'm doing a Maps thing.

So, question- phone seems to think it's in Dallas (I'm in BR).
I go to a store site like Home Depot, and it constantly gives me the Dallas stores.
I got a notice from Amazon, saying someone signed into my account in Dallas... after I logged into Amazon on my phone and placed an order.

I've been noticing this awhile, been monitoring a lot of accounts; nobody is trying to buy anything elsewhere (or hasn't in well over a year, as of yet). It's the phone itself.

Is this something due to being used? Is there any way to correct it?