NOTE: I know how the regular "Find My Phone" feature works. And I understand that for that feature to work my watch must be connected to my phone via bluetooth. This works fine.
However, at software version 19.18, which I have, garmin introduced a "Locating a Phone Lost During a GPS Activity" feature. It is mentioned here: https://forums.garmin.com/sports-fitness/running-multisport/f/forerunner-965/372839/forerunner-965-software-version-19-18---live and here: https://www8.garmin.com/manuals/webhelp/GUID-0221611A-992D-495E-8DED-1DD448F7A066/EN-US/GUID-3FEA8636-13DF-4111-B4BF-ADEC57E594AA.html
So I verified that the setting is turned on. Then I started a walk with my phone sitting next to me. Then I left my phone on my porch and walked around the block. Before I get halfway around the block I have lost the connection to the phone but I never get "prompted to navigate to the last known location of [my] device".
Does this feature work for anyone?