Uncaught Error: Call to undefined method stdClass::format_value_for_rest()

Describe the bug
External plugin sometimes break the REST api because they don't implement format_value_for_rest. |

Now this is really their fault. But a simple solution is to a function exists check:

method_exists( $type, 'format_value_for_rest' ) 

/**
 * Format a given field's value for output in the REST API.
 * 
 * @param        $value
 * @param        $post_id
 * @param        $field
 * @param string  $format 'light' for normal REST API formatting or 'standard' to apply ACF's normal field formatting.
 * @return mixed
 */
function acf_format_value_for_rest( $value, $post_id, $field, $format = 'light' ) {
        if ( $format === 'standard' && function_exists( 'acf_format_value' ) ) {
                $value_formatted = acf_format_value( $value, $post_id, $field );
        } else {
                $type = acf_get_field_type( $field['type'] );
        
                if ( method_exists( $type, 'format_value_for_rest' ) ) {
                        $value_formatted = $type->format_value_for_rest( $value, $post_id, $field );
                } else {
                        // Handle the case if neither function nor method exists
                        $value_formatted = $value; // or set default/fallback
                }
        }
         
        /**
         * Filter the formatted value for a given field.
         *
         * @param mixed      $value_formatted The formatted value.
         * @param string|int $post_id The post ID of the current object.
         * @param array      $field The field array.
         * @param mixed      $value The raw/unformatted value.
         * @param string     $format The format applied to the field value.
         */
        return apply_filters( 'acf/rest/format_value_for_rest', $value_formatted, $post_id, $field, $value, $format );
}

Locate the acf_format_value_for_rest() entry point and inspect how acf_get_field_type() results are used before format_value_for_rest() is called. Reproduce the undefined-method failure with a field type that lacks the method, then add coverage showing the REST value is handled without an uncaught error.