Phone keeps returning GPS coordinates of a place I haven't been in years

*Not sure if this is the right place to ask this kind of question, so please let me know if this thread should be moved to another SE board.* ### The problem For about two years now, I keep getting very weird behavior when having my apps query my GPS coordinates: **apps keep locating my phone at a place I haven't lived or been in years**. This belongs all sorts of apps that rely on GPS, starting at Organic Maps, Home Assistant, even Google Maps tends to locate me at that certain location. **The problem only occurs when my phone doesn't find a satellite to acquire accurate GPS coordinates.** ### Some background information - I moved from town X to town Y about 3 years ago - I signed a fresh contract with my internet provider using only my new address (in town Y) - When moving, I had a Galaxy S9 with "stock" Samsung Android installed on it, connected to my Google account which had my old physical address saved. Back then, GPS tracking worked like a charm - at some point after moving, I decided to install /e/OS (for privacy reasons obviously; fork of LineageOS) and get rid of everything connected to Google - I even deleted my Google account and changed my real name and address inside my Google account before deleting it - after installing /e/OS, I used microG to have a *random* Google account (necessary for Google Play Services) for usability reasons - eventually, I decided to buy a new mobile (Galaxy S10e) purging everything and installing /e/OS as well before connecting it to any possible internet account - I bought a new pre-paid cell phone card which is registered with my new address (town Y) So basically, I changed my place of residence, changed mobile phone cards, changed mobile phone, changed internet contract, changed my mobile operating system and purged my Google account (and didn't even once connect it to my current mobile phone), thus my phone should be **unable** to have **any** information about my old flat's address, or is there something I left out here? When moving outside or driving (or being navigated through Organic Maps, for example), apps sometimes locate me at that same location in the beginning, but when getting a good GPS signal, it changes to my real location. It seems like that certain old address from town X is somehow stored in my phone or location history or somewhere else, I just can't figure out where it could possibly be stored. I have no accounts linked with my phone which know any of my addresses, **how is this possible**? I am incredibly grateful for any thought on this, it's driving me crazy. Thanks in advance.