It is my understanding that noBreakHyphens are displayed optionally - if, for instance, you display a paragraph in a narrow space. Most people extracting this text will have no interest in seeing the hyphen. For me, this behaviour would have to be optional and default to the existing behaviour.

For delInstrText, please provide a sample docx file that can be used to test with.

The Sample File: TestNoBreakHyphenAndDelInstrText.docx

the result in test:

In this example, the "-" in the first Figure 1-1 is noBreakHypen, and I think it is necessary to display it.
FYI: https://learn.microsoft.com/en-us/dotnet/api/documentformat.openxml.wordprocessing.nobreakhyphen?view=openxml-3.0.1
The second Figure 1-1 has delInstrText, just like InstrText, it shouldn't actually be displayed

Thanks - merged