My GPS signal is very slow (or seems to be) and my apps seem having problems with the signal.
OSMAnd~ seems to not get it at all.
Telegram gets the GPS signal, but it takes about five minutes until I see a result.
Is it (most probable) an issue of the apps, my FP itself, the OS itself or of some phone setting(s), e. g. in Settings → Apps & [notifications] → [the app itself] or Settings → [Safety] & [place of location] (→ Privacy (→ [place of location]))?
I’m not sure whether Fairphone Open OS utilises the Qualcomm GPS almanac… if it doesn’t then I think that might explain why gps takes a long time to lock on. Then there’s also Google location services which use WiFi to get a coarse location (using Google’s database of WiFi access points collected during streetview mapping).
Has the GPS always taken long to lock on, or has this only started happening recently?
As a sidenote, I use a dedicated GPS device to track my bike rides and it takes at least 5-10 minutes to lock on, when powered on at a new location far from its previous location (its manual states this is normal).
I’m pretty sure that Lineage is comparable in that respect: My FP2 with LOS is not allowed to use anything else than the GPS receiver to determine its position and usually I have a fix within a few seconds after starting the app that wants to use the position. So several minutes or no fix at all doesn’t sound normal.
Have you tried a simple GPS app like SatStat to see what you receive at all? That helped me debugging the issues that I used to have with location services some time ago.