Lists all SSP plugin podcast custom post type on the home page

functions.php

<?php
/*
Plugin Name: SSP Customizations
Plugin URI: https://github.com/TheCraigHewitt/Seriously-Simple-Podcasting
Description: Customizations for the Seriously Simple Podcasting Plugin
Version: .1
Author: itsjusteileen
Author URI: https://github.com/itsjusteileen
*/

/*
Displays SSP custom post type PODCAST archive as the home page. Amended from https://www.gmitropapas.com/set-a-custom-category-post-type-archive-as-your-homepage/
*/

function ssp_podcast_front_page( $query ) {

	// Only filter the main query on the front-end
	if ( is_admin() || ! $query->is_main_query() ) {
		return;
	}

	global $wp;
	$front = false;

	// If the latest posts are showing on the home page
	if ( ( is_home() && empty( $wp->query_string ) ) ) {
		$front = true;
	}

	// If a static page is set as the home page
	if ( ( $query->get( 'page_id' ) == get_option( 'page_on_front' ) && get_option( 'page_on_front' ) ) || empty( $wp->query_string ) ) {
		$front = true;
	}

	if ( $front ) :
		$query->set( 'post_type', 'podcast' );
		$query->set( 'page_id', '' );

		// Set properties to match an archive
		$query->is_page              = 0;
		$query->is_singular          = 0;
		$query->is_post_type_archive = 1;
		$query->is_archive           = 1;
	endif;

	// Fix pagination
	if ( get_query_var( 'paged' ) ) {
		$paged = get_query_var( 'paged' );
	} elseif ( get_query_var( 'page' ) ) {
		$paged = get_query_var( 'page' );
	} else {
		$paged = 1;
	}

	$query->set( 'paged', $paged );
}
add_action( 'pre_get_posts', 'ssp_podcast_front_page' );