Running zoom.us on a HiDPI screen

Working from remote requires tooling to communicate with co-workers. some are using ​zoom.us which has good linux support.

How-ever when started the whole interface is tiny-tiny since the Qt application does not honour the settings used to combat unreadable windows on my HiDPI screen.

Altering file:/usr/share/applications/Zoom.desktop and adding the ​required Qt tweaks (QT_SCALE_FACTOR=1 QT_AUTO_SCREEN_SCALE_FACTOR=0 QT_SCREEN_SCALE_FACTORS=2) did the trick: 

[Desktop Entry]
Name=Zoom
Comment=Zoom Video Conference
Exec=env QT_SCALE_FACTOR=1 QT_AUTO_SCREEN_SCALE_FACTOR=0 QT_SCREEN_SCALE_FACTORS=2 /usr/bin/zoom %U
Icon=Zoom.png
Terminal=false
Type=Application
Encoding=UTF-8
Categories=Network;Application;
StartupWMClass=Zoom
MimeType=x-scheme-handler/zoommtg;x-scheme-handler/zoomus;x-scheme-handler/tel;x-scheme-handler/callto;x-scheme-handler/zoomphonecall;application/x-zoom;
X-KDE-Protocols=zoommtg;zoomus;tel;callto;zoomphonecall;
Name[en_US]=Zoom

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