2022 Silverado Refresh - Sideload Android Apps to Infotainment System

Has anyone been able to figure out how to sideload apps on the new 2022 refreshed Silverado infotainment system since it runs android? I am interested in experimenting with various apps and installing a file browser.

Also, has anyone figured out a way to force Apple Carplay to be full screen? Android auto runs full screen but not Carplay. If I am able to get into the system and extract the Carplay app there may be some hope of modifying the screen resolution limitations for Carplay.