Android Auto and Android Automotive are 2 complete different systems. Android Auto runs on your smartphone and Android Automotive is a standalone device/package. Volvo did make the choice not to support Android Auto on Android Automotive.
The Chigee is developed as an Apple Carplay and Android Auto head unit. That's why there is no Play Store. Because Chigee is a Apple Carplay and Android Auto headunit. In theory it does not need any updates. Because it does not run any apps. In theory it runs forever.
@Con-Hennekens
The Android head unit you mentioned is just a kind of tablet in caraudio formfactor made in China for Aliexpress type shops. With all the free disadvantages you could expect. Like no support and no updates.
It has still Android 10 while Android 14 is the current version on new smartphones. If i'm not mistaken, most apps requires at least Android 8. It is a matter of a few years when apps slowly stop working on this device.