There are some posts that indicate that Apple Macs support PDF embedding natively.
In this topic … Insert multi-page PDF into layout 2017 for MAC the poster says he can see the first page (but only the first page.)
EDIT, here’s another: Need for more flexible text editor in LO - #9 by simoncbevans
I wonder what i’d look like if opened on a MS Windows machine ?
ADD: still another which is a Feature Request thread: PDF Import Into Layout