Vertical display not showing correctly

[nitewing76]

Same issue as here: #99

I also used the same method to rotate the screen:
body {
margin: 0;
position: absolute;
transform: rotate(-90deg);
transform-origin: top left;
width: 100vh;
height: 100vw;
object-fit: cover;
top: 100vh;
visibility: visible;
}
......so I can use VNC Viewer normally.

Their solution was to go with calendarext, but I prefer to stay with CalendarExt2.

Screenshots from the other post (problem is identical):

[klaernie]

Maybe a stupid question: does the rotating the screen via the raspberry config also reflect in VNC? I thought rotating via CSS means the raspberry thinks the screen is still in horizontal mode, and then the magicmirror is rotated 90° in VNC.