Using 10bit color in Xorg/X11 all the icons in LibreOffice fail to render properly. All other programs work normally, it is only LibreOffice that shows this corruption.
Is there any workaround?
You could try enabling high contrast mode in Accessibility and see if the icons it uses suit you.
Possibly “this clipping of colours”
High contrast icons show the same as in the screenshot.
That’s curious. In High Contrast mode all the icons are only black and white except for those relating to colour. I had a quick look and they are Sifr theme
How to Report Bugs in LibreOffice - The Document Foundation Wiki