Hi @antidetron,
I hope you are well today and thank you for your question.
It seems you are displaying full post content on the front page of your site so the Read more button is not displaying.
To display read more button in this case you have to use the custom child theme shared in the following topic.
https://colorlibsupport.com/t/more-link-not-visible/#post-49547
Best Regards,
Movin