The LO Save As dialog shows for saving an Microsoft OOXML document either “Office Open XML Text (Transitional) (.docx)" or the more commonly used "Word 2007-365 (.docx)”. Assuming the “Word 2007-365 (.docx)" is a Transitional “formatted” document “compatible” with what MS Office produces I would think the "Office Open XML Text (Transitional) (.docx)” should actually be the Strick format and for that say “Office Open XML Text (Strict) (.docx)". That would be in line with the MS Office Save As options where the Strict format is also refereed to as "Office Open XML-document (Strict) (.docx)”" vs Transitional “Word Document (*.docx)”. So is that in LO a typo that needs to be fixed?
Environment: LO 7.0.2