Tested in KDE Neon (please pardon the fact that the before and after screenshots have different window sizes):
Krita, before:
{F5662756}
Krita, after
{F5663044}
Endless Sky, before:
{F5662755}
Endless Sky, after
{F5663045}
Blender, before:
{F5662758}
Blender, after
{F5663046}
Mobile UI, before:
{F5662945}
Mobile UI, after
{F5663047}