My speculation re GPS and iphone CarPlay. CarPlay active stops GPS data to Gravity native navigation ( (from driving long distance in Teslas since 2015 we usually have three independent gps dependent apps on vehicle, iphone and iPad.
The iphone once interrupted the entire screen display for any communication. ( I was beta tester and pointed out sometimes app has priority over communication and now you choose where notifications are on screen)
CarPlay on a Mercedes still gives communication priority. And I don’t always want that. Do not know lucid. But
In fact lucid voice nav overrides any other media.
I believe in offering user opportunity to choose.
Different situations different priorities.
Back to the GPS. For local driving I prefer the big pilot panel screen map.
My guess is the whole gps issue relates to CarPlay interface. And once you connect, even if you disconnect there is some lingering recognition that is screwing with the native car app. ( really weird when map image flipped and position icon still moved ( not just frozen) but was in wrong location.