Using Kleopatra should be possible for people using 400 % magnification.

For testing with 100 % magnification this means:

• All involved dialogs should still be usable with keyboard only if the width of the window is reduced to 480 pixels (i.e. 25 % of FullHD width) or if Kleopatra is started with 400 % scaling by setting the environment variable QT_SCALE_FACTOR=4.
• No UI elements should be cropped/clipped.
• Horizontal scrollbars are avoided as much as possible.