2020 Nissan Pathfinder Wipers & Visibility Problems

Defroster does not work properly. Will allow my vehicle to warm up for 15 to 20 minutes to allow proper heating as this has been an on going issue. While driving in colder temperatures the front windshield will freeze over a on the inside of the vehicle only effecting the drivers side. There will be a distinct line up the middle of the windshield where the drivers side is frosted over and the passenger side is clear. We have taken to a local Nissan dealer where they state everything works as it should and that even the owners brand new Nissan pick up also does this. This is a major safety concern!!! We are forced to continue to drive as once you pull over you will loose all heat causing the entire windshield to freeze over. This has been happening since we purchased the vehicle Dec 2021