In previous versions of LibreOffice, the field “Tools-Options-Internet-Email” would work correctly if it were /usr/bin/evolution . This no longer works. Neither does /bin/evolution. When the email icon is clicked, nothing happens. It used to bring up a new Evolution email page with the LibreOffice Writer document attached.
Please also note that there are NO INSTRUCTIONS for completing this field in LibreOffice 7.2 Writer Guide.