I'm trying to understand how to make layouts responsive when resizing. I'm trying to build this spotify look-a-like for desktop, all I have is nested Columns, Rows, Boxes and no support for constraint layout yet. In second image, when I try to resize to small window size, it lays views almost on top of each other instead of hiding the complete bottom player. Am I missing anything ?

Have a look at spotiflyer on github

Do look into using

Modifier.weight

for child contents within Box/Column/Row which allows them to dynamically grow/shrink more relatively