I have had OLED and AMOLED screens on my phones for years and yes back in the first we generations this was an issues. Even my old smart watch had this issue bu

I have had OLED and AMOLED screens on my phones for years and yes back in the first we generations this was an issues. Even my old smart watch had this issue but since the last 2 generations of phones and watches this has no longer been an issue and I don't have a fancy flagship Samsung but some mid range Asus phone that is also already 3 years old. Aren't all of these screens made by the same few manufacturers? Why does Apple have these issues? Is it software/driver related?