Footnote multiple reference

[Win 11, LO 25.2]
I have a footnote that I would like to share with multiple recalls, not just with the first reference to it.

What I have done up to now is create the footnote on the first instance, then on the second need I insert a cross-reference to the footnote referenced text, select it, and format character(s) as “Footnote Anchor”.
The result looks correct: is this the way to go?

Yes.

A footnote is a reference-able object and you can cross-reference its anchor.

In case your second+ references are far away from the initial note, you can also create an original note which text is “See note x on page y” where x and y are cross-references to Referenced text and Page Number respectively.