Help with regex redirection

hi, is there a way to redirect all the articles except some pages?
I didn’t quite understand how to use regexp, I understand that I should use this example of the documentation

Redirect all URLs to / blog / except ones that start with / blog /:

Source: ^ / (?! blog) (. *)
Target: / blog / $ 1

only that I should set up multiple pages not to redirect, and the redirect must take place on another url.

for example if I want to redirect all the articles except the “About Us” page, is the following ok?

Source: ^ / (?! about-us) (. *)
Target: https://www.liaf-magazine.it/$1

and if in source I wanted to specify other pages how could I do?

Thanks in advance

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