[Sergio De Falco]

My step up, also install/update Gutenberg standalone plugin to the latest version and add this to your own plugin / theme functions.php

function envireit_bbp_register_forum_post_type( $args ) {
	$args['show_in_rest'] = true;

	return $args;
}

add_filter( 'bbp_register_forum_post_type', 'envireit_bbp_register_forum_post_type' );

function envireit_bbp_register_topic_post_type( $args ) {
	$args['show_in_rest'] = true;

	return $args;
}

add_filter( 'bbp_register_topic_post_type', 'envireit_bbp_register_topic_post_type' );

function envireit_bbp_register_reply_post_type( $args ) {
	$args['show_in_rest'] = true;

	return $args;
}

add_filter( 'bbp_register_reply_post_type', 'envireit_bbp_register_reply_post_type' );

With this you will be able to build via site builder, your own forums, topics and replies page. Just replace the content loop with the article content block.