Green Screen Error on my iPhone 13

My iPhone 13 suddenly turned into green screen when i watched Youtube. My iPhone still on but I can’t use my iPhone because the screen green. As I searched with same case, it is manufactured failure and when I contact to support store I was asked to repair with expensive cost which I can't afford to repair .... just there are free repair events for Iphone 13 Pro and Promax. If I replace the screen with high cost as offered by store it would be under warranty 90 days and this error can happen again at any time. So why user like me have to face green screen problems like this and constantly pay for unafforable cost of repairing?