I think I was having an issue with priority and shortcodes. This seems to be working now, but if there is a better or more preferred way, I'm interested to know. Thank you!
add_filter( 'rwmb_meta', function( $value, $field_id, $args, $object_id ) {
// look for my custom fields
$filterThese = array('extra_info','user_notes','manager_notes');
if ( in_array($field_id, $filterThese, true) ) {
// run my custom field values through the filter
return filter_keywords($value);
}
return $value;
}, 99, 4 );