The prior public version I had installed for Windows (7) showed all notebooks that were shared with me. After this update, even though the release notes promised to display the notebooks the prior capability is broken. The only thing I see in "Shared with Me" is a note someone shared with me and that I cannot delete.
On my Win 10 machine, running version 18.104.22.16894, the feature works as promised.
I'm holding off on updating Evernote on my other machines until this is fixed.