First test of GPS on Fenix 6S Pro is promising.
https://connect.garmin.com/modern/activity/4026466640
https://www.strava.com/activities/2681922762
Short ride and the tracks show perfectly what side of the road I was on - no cross-overs. Best tracks I have seen from a Garmin device, and I've owned Forerunner 630, 935, 645...
I had it set it to 1 sec recording & GPS+Galileo.