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The StyleRef Field refers to getting text in a given style and repeating it. The Style 1, Style 2, etc. would be styles used in the body of your document. You could use different StyleRef fields in your different headers and footers.

Here is my Header/Footer Settings Recap. While you probably want different arrangements or organizations in your different headers and footers, I'm not sure what the StyleRef field has to do with that.

Here is an excellent reference on things you can do with the StyleRef field: Useful StyleRef tricks by Suzanne Barnhill, MVP

Word comes with a selection of fancy Headers and Footers and Page Numbers that you can use and edit. It is important to edit those rather than picking a new one. For instance if you have a good header and want to add a page number, do not pick a page number from the gallery for the top of the page or it will replace your header. Instead go into it and add the page number at the current location. For that matter, you do not have to use those galleries at all.
Page Numbers in Word 2007-2021 (365)

Once you have a header or footer that works for you, you can save it to the Headers or Footers gallery as a building block.
Automated Boilerplate Using Microsoft Word

Finally, you should be building a template that you can use again and again and has your headers and footers in it.
Templates in Microsoft Word

Microsoft used to have a Quick Reference Page on Headers and Footers but it seems to have disappeared. I have reduced it to a pdf though.
Quick Reference Guide for Headers, Footers and Page Numbers