There is a IgnoreTabsAndBlanksForLineCalculation compatibility setting, making space character height not affect line height. It is enabled for Word file formats, and its effect can be observed in attachment 184814 [details].
This setting has no entry in Options->Writer->Compatibility. Like with bug 76005 and bug 126513, it needs to be present there.
Currently, default is False in settings: https://opengrok.libreoffice.org/xref/core/smoketest/data/settings.xml?r=2b383d19#72
It is set to True for DOCX filter: https://opengrok.libreoffice.org/xref/core/writerfilter/source/filter/WriterFilter.cxx?r=de2b1a3a#317
No control in Compatibility section of Options dialog: https://opengrok.libreoffice.org/xref/core/officecfg/registry/schema/org/openoffice/Office/Compatibility.xcs?r=27f98935
Version: 184.108.40.206.alpha0+ (X86_64) / LibreOffice Community
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