Problems with my 2019 XC90

Just purchased my 2019 XC90 which has 1,900 miles. The vehicle has some serious software issues: at initial start the computer screen blacks out and reboots (?) several seconds later, at stop lights the vehicle is skipping in and out of drive modes and after receiving a dealer's software update conditions still exist with a new twist. I left the vehicle running in Park and went to take a package off the backseat and when I got back in the vehicle had shut itself off! Anyone has else having this much fun