Since i have a new phone my status goes sometimes to “away” for a few seconds. This is very annoying because my tv’s go off when i “leave” the home zone. I took every setting over to the new phone and deleted my old phone from Home Assistant.
You don’t say what type of phone it is, so can’t comment on what you may want to check, however:
In my opinion it is never a good idea to have automations / triggers based on a device tracker changing state without some form of delay to prevent these types of issues from occuring.
You have turned high precision GPS off and that can occur easily.
I suggest you combine your phone’s GPS with a network monitor on your devices, so there are two trackers combined.
Just remember to deactivate the anonymizer on the Mac address on your phone.