Location change notification

This is probably a really dumb question, so please forgive my ignorance.

I’m not very experienced in home automation but leaning as I go. I didn’t know which way to go for HomeKit integration so I setup Home Assistant and Homebridge servers (each on a an individual Pi) a year go. I originally found HA too complex and went with Homebridge, but now with a little more experience I decided to switch over to HA. So far all has gone well, BUT… When I originally set up the HA server I did a couple of tests to try it out. One of these was geolocation. I set a notification to my phone when I arrived home. Now I’m using HA all the time I want to stop this notification but I don’t know how!! I can’t for the life of me remember how I set this up??? I can’t find it in any automation or in any configuration or yaml file or anywhere? Can someone point me in the right direction to find where this may be configured please! Yesterday I added another location zone for my place of work, and as soon as I got to work I got a notification! I really need to stop this happening so I need help