I'm hdmi connecting a laptop in 4K.
Eventhough I set the scaling to 200%, notice:
1/ Desktop toolbar stays tiny
2/ mouse pointer issues:
mouse pointer size set to 48
according to the zone it the mouse pointer is tiny or as it ought to be,
for instance on the title area of the window it has normal size, while within the window it shrinks as tiny
Nobody is testing in 4K ?