I hardly know anyone who uses an internal GPS provided by the car. Everyone uses their phone, either through CarPlay or just putting the physical phone up somewhere, somehow. Every car manufacturers' GPS's I've seen or heard of have terrible UX compared to phone apps such as Google Maps, Waze, or Apple Maps.
It's not true. Take the Apple TV vs Roku. Roku is so easy to use, so reliable, similar capabilities. They just nail it. Apple TV's remote is so confusing error prone and unintuitive my wife refuses to touch it, and I make mistakes with it much more than Roku. We put up with it only for the exclusives (Apple TV, HBO Max) and Apple only features (Apple device mirroring)