No, but it might not be as good as one might expect out of the box. In most implementations of gps, location accuracy and latency is helped with additional methods, like your phone using its distance to various cell towers to figure out where it is. Features like this can come with privacy issues, which for Graphene is a higher priority issue than slightly worse navigation. You can of course go into location settings and enable all that, just make sure to read the added disclaimers as they go into more detail.