Hi,
Is there any easy way to see person last location update time? Like in Google maps that I know if someone updated their location x minutes ago.
In HA I think there is only visible zone change time (at least in person integration).
Not a answer per se but if you use the reverse places sensor then you will get an attribute:
last_changed: 2020-08-24 19:32:56.469884
actually last_changed is available to all entities