grabWindow() returns pixmap which is NULL on WSL

from PySide6.QtWidgets import QApplication

screen = QApplication().primaryScreen()
print(screen.manufacturer())
print(screen.model())
print(screen.name())
print(screen.geometry())
print(screen.availableGeometry())
print(screen.virtualGeometry())
print(screen.orientation())
print(screen.depth())
print(screen.devicePixelRatio())
print(screen.grabWindow().isNull())

python bug.py 
weston
rdp
rdp-0
PySide6.QtCore.QRect(1680, 0, 1920, 1080)
PySide6.QtCore.QRect(1680, 0, 1920, 1080)
PySide6.QtCore.QRect(0, 0, 3600, 1080)
ScreenOrientation.LandscapeOrientation
32
1.0
True

Philips Consumer Electronics Company
273ELH
273ELH
PySide6.QtCore.QRect(0, 0, 1920, 1080)
PySide6.QtCore.QRect(0, 0, 1920, 1032)
PySide6.QtCore.QRect(-1680, 0, 3600, 1080)
ScreenOrientation.LandscapeOrientation
32
1.0
False