www.wysiwygwebbuilder.com

Is it possible to set up a link to line ( as in email, messenger, Ect)

The horizontal line does not support links.
But you can use a shape instead.

Line is a social media platform similar to messenger, WhatsApp etc.

In that case if it uses any script such as html / jQuery / javascript then you can use the following:
https://www.wysiwygwebbuilder.com/add_html.html