Seal U (DMi) - 2025 -google onboard Navigation

As we know Seal U probably others use Commercial Google Maps as on board navigation. In principal for me alright as I am Android user. However what limits this google Maps to the traditional one on my phone. Let's don't talk about android Auto Google Maps as alternative, i know. The onboard Google Maps, shows traffic light other POI, like speed radars, .... But why does this googleaps delivery with BYD doesn't show traffic live data. What are the technical limitations to the "normal google maps"? I need the traffic live data every day when driving to and from work. Because its the discission about route 1 or 2 as prognostic to decide. But while normal maps over my phone has the 45 delay traffic jam and makes me decide taking route 2, the onboard Navigation never shows live data since car purchase. I would still prefer the onboard than Google maps over Android Auto. But this missing feature makes it useless. Thanks regards