Apple also used BOE OLEDs (12th and 13th I think?) and the iPhone 12 OLED displays have just some of the worst viewing angles I've ever seen out of any display, including cheap TN panels like those IBM and Lenovo liked to put into Thinkpads. Though apparently there is quite some sample variation to that... also tons of purple/green fringing but apparently that's considered normal for phone OLEDs.