https://bugs.kde.org/show_bug.cgi?id=483819

            Bug ID: 483819
           Summary: If the system's configured scale is above 100%, some
                    apps' elements will draw way too big, unless XWayland
                    is used
    Classification: I don't know
           Product: kde
           Version: unspecified
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: unassigned-b...@kde.org
          Reporter: morcyboll...@gmail.com
  Target Milestone: ---

Created attachment 167364
  --> https://bugs.kde.org/attachment.cgi?id=167364&action=edit
Demonstration of the bug in LibreOffice. The lower screenshot shows the
expected appearance, achieved with the XWayland workaround.

SUMMARY
***
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See
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***


STEPS TO REPRODUCE
1. Go to System Settings > Display & Monitor > set Scale to 125%
2. Open LibreOffice and check out the size of the toolbar and other elements
3. Open any image in Gwenview > Show Editing Tools > Annotate and check the
size of the toolbars on the left and on the bottom

OBSERVED RESULT
All elements of the windows are scaled up way above 125%. As a result, they
take up a notable part of the screen. Some QT layouts end up bigger than their
windows, making elements inaccessible.

EXPECTED RESULT
Apps should be scaled to the configured scale of 125%, and all elements should
fit within their respective windows.

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: Arch Linux 6.8.1-arch1-1 (64-bit)
(available in About System)
KDE Plasma Version: 6.0.2
KDE Frameworks Version: 6.0.0
Qt Version: 6.6.2

ADDITIONAL INFORMATION
This problem has appeared after upgrading to Plasma 6.
The workaround I've found for this is to force QT to use XWayland on per-app
basis, for example: "QT_QPA_PLATFORM=xcb libreoffice --calc"

Gwenview's Annotate behaves weirdly even though Spectacle's Annotate behaves
normally (i.e. correct scaling is applied), but I wasn't able to get Spectacle
to screenshot itself. Attached is a demonstration in LibreOffice.

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