Not all all, Linux is the culture of command line, where people improving UI/UX on GNOME/KDE always get bashed as taking the power away doing irrelevant work.
There is not a single cohesive stack of desktop technologies, what macOS calls Kits, Android frameworks, Windows UWP and such.
Something like Glade still fails short of what XCode or VS Blend are capable of.
Sure there is something like Qt QML designer, but that isn't Linux specific anyway.
You are missing context. Grandparent was claiming that Linux was the best OS he’d used for development (fair enough), but that he’d rather have Windows over macOS otherwise. That part I was hoping for clarification on.
The only UNIX based that tops it is macOS.