Extract Url & Title from link field in Drupal 8?
At the node level, inside your Twig template you can use:
{{ content.field_link.0['#url'] }}
& {{ content.field_link.0['#title'] }}
For example:
<a href="{{ content.field_link.0['#url'] }}">{{ content.field_link.0['#title'] }}</a>
field_link
being the name of the link field in question.
I just found the solution ...
$partner->field_lien->uri // The url
$partner->field_lien->title // The title
My bad, hope it could help someone.