Google is integrated directly into the infotainment system in 2023 1500 LTs and up and 2024 HD LTs and up (and their GMC equivalents).
If you are looking for Google Maps, it will be utilized through Android Auto including other apps like Apple Music, Spotify...etc. The stock Chevy head unit can download a few crappy interpretations of apps, but plugging your phone in by USB and using Android Auto will be far superior. When you do so, you basically put a "skin" over the GM operating system. Once in Android Auto, you can use the touch screen to go into Google Maps and also have something like Apple Music...etc playing on the bottom tab of it.