Some charts seem to laid out dramatically differently
after 25.8.0 commit 33f644074e498336d97a881be903662c9a6abedf
Author: Markus Mohrhard on Mon Jul 14 21:02:39 2025 +0800
    OOXML handling of 1904 null date for charts with internal data provider
    Reviewed-on: https://gerrit.libreoffice.org/c/core/+/187835

Steps to reproduce:
-open attachment 94631 [details] (166.docx) from bug 75420

on page 5, the chart no longer takes up the width of the page, the title text is squeezed, and the bottom legend is displaced. This particular chart looks worse overall.

on page 9, the top chart's title "Occupied Days" has moved into the line graph. In general, however, this particular chart seems to have an improved layout.

Also seen with:
-fdo40594-7 chart shifted and legend offset/hidden. attachment 94136 [details] (Demo-Hayden-Management-v2-chart.docx)
-fdo75309-1 much taller - legend shifted. attachment 94492 [details] (test-import.docx)

Marking as a regression, but not assigning blame because I expect it has just exposed some existing limitations or bugs.