In the devellopeur options have you been annoyed about
Force full GNSS measurements
If so, deactivate the
on some smartphones in Android 11, these manufacturers (the list is growing every day :)) GPS is partly bug
the supplier of the GPS chipset provided a file "with sample values", they did not put their data in thinking that the file was to be used as is.
Asus, google, motorola, onplus, samsung, sony, vivo, hdm (nokia), LGE
This bug is in issuetracker.google.com
GnssAntennaInfo returns wrong values on all Android 11 devices
I don't know if Rog phone 5 is affected, GNSS is not enabled and GPS works fine (avg snr> 26 indoors 41 fix out of 78) on mine. i have two motorolas and one which has the bug but it does not affect the sensitivity, avg snr of 20.6 on the outside uncovered is very very low, it is as if you are in a forest under the trees or you have an NFC protective case.
or there is an internal connection problem with the GPS antenna.
To be sure go to another well cleared place (other than the seaside) you should have a signal> 40 on the green gps (fixed)
Deleted before the history of google positions.