@Roel_van_der_Vegte Galileo seems to work well on my FP3 already 
As you can see in the GPStest (F-Droid) screenshot three Galileo satellites have been used for the location fix.
“On the status screen, if the Galileo satellite has a ‘U’ next to it, that satellite is being used by your device to calculate your position at that very moment.” link
