Buttons in hero section on landingpages

Buttons in hero section on landing pages do only work if you click on the text. If you click the button outside, nothing happens. The classes "btn btn-lg" are added to a surrounding DIV not the anchor tag.

To solve the issue remove the classes "btn btn-lg" from the div in paragraph--button--default.html.twig

But now the classes need to be added to the anchor tag.

There are several options:
Use:
https://www.drupal.org/project/link_class or
https://www.drupal.org/project/link_attributes

or write your own Fieldformatter for Links inside the social_landing_page module.

Any suggestions or ideas what the prefered way could be?