@hellomiakoda @furilabs
Should be quite easy because at the moment FLX1 works like this:
If you use android-container the GPS is locked to android apps - and GPS works as good as any modern smartphone. You will get location immediately.
If you use this method you can use the same methods as you use with deGoogled android device.
If you choose to go with linux route you need to first stop android-container. GPS works then also there and there are methods to share location with linux too.