This is an important thing to note and I'm not sure designers take it into account often enough. I know I'm guilty of designing an interface that looks good on an iPhone 5s, SE, 6, 6+, and X with default settings, only to watch someone with an 8+ have their scaling turned way up and blow my user interface out of the water.
Alternatively I had an app that worked well on all screen sizes, but one of my friends showed me it wasn't working because they had increased the size of their keyboard and the extra-large keyboard was covering one of the buttons.
Alternatively I had an app that worked well on all screen sizes, but one of my friends showed me it wasn't working because they had increased the size of their keyboard and the extra-large keyboard was covering one of the buttons.