In all honesty, I barely use the built-in OS anymore and have it to default on Android Auto. Which also display the date and calendar.
But this also has its issues. It requires a physical wire from the phone to the car and sometimes my aging phone will decide to crash/reboot during navigation.
This ended in me needing to exit the highway to reconfigure my route a few times.
Currently, my only use of the car's OS is the media center. Instead of using my phone, I have a large drive filled with music plugged in one of the USB ports.
Not only does it saves some of my phone's data and space, it makes it more stable. Using Spotify and a navigation app at the same time often has my phone freeze which can result in missing certain directions.
This is especially true when the battery reach 100% and begin heating as it tries to charge on/off.