How does responsive Screen Sizing work?

in Thunkable X, I have marked the screen size to flex but when I view on one android device (Vivo) it takes the full screen but when I view on a Samsung S10 it only takes up less than half. I tried marking min height and max height both at 100%, but still doesn’t work. Different screen turn out different sizes.

What is the solution for this?

You can show the screen with the problem?

Hi @newb2apps, did you manage to resolve this issue?

Let us know if there’s anything else we can do to help.

Hi. still not resolved yet. Here are 2 screen shots of the option menu (simple and advanced) for the screen. Here are also 2 screen shots of how it displays on 2 different android phones.

Its EasyResponsive Screen can change screen to mobile screen