Code-Snippets-Functions/Execute a function on a child site/WordPress/set-the-default-image-size-block-settings.txt

function example_set_default_image_size( $settings, $context ) {
	if ( 
		! empty( $context->post ) && 
		'post' === $context->post->post_type 
	) {
		// Set the default image size to full.
		$settings['imageDefaultSize'] = 'full';
	}

	return $settings;
}
add_filter( 'block_editor_settings_all', 'example_set_default_image_size', 10, 2 );