Hi,

Yeah, because by default, WordPress just allows for "text" in the user description field.

To do that, you can do the follow steps:

1/ Install & activate plugin https://wordpress.org/plugins/code-snippets/

2/ Go to Snippets > Add New > and name your snippet. The name doesn’t matter, example: Filter Author Bio.

3/ In the snippet body, insert the following code below and save it:

remove_filter( 'pre_user_description', 'wp_filter_kses' );
add_filter( 'pre_user_description', 'wp_filter_post_kses' );

4/ Go to edit your Profiles - and you can use  <br>  tag or <p> tag to create a new line or multiple paragraphs.

Example:

Here is the first line<br>
Here is the second line<br>

or:

Here is the first paragraphs</p>
<p>Here is the second line</p>
<p>Here is the third line

Best Regards,

PenciDesign