Comment by zozbot234

> Phone UI paradigm isn't as easy as "Let's just scale down the Desktop/Tablet applications".

Have you tried modern Gnome/GTK+ 4 applications? You can resize the window to a tiny size and it seamlessly "scales down" to a phone layout. Very handy even on a desktop. Yes, there are real differences besides size (phone UI needs a lot of inactive padding around tap areas because finger taps are imprecise; it greatly prefers swipes to taps, while a pointer-based UI prefers clicks to drag'n'drop; phone UI needs long taps as a secondary action, etc.) but they're minor in the grand scheme of things.