Change registered_post_type $args

my-registered-post-type-handler.php

<?php
add_action('registered_post_type', 'my_registered_post_type_handler', 10, 2);
function my_registered_post_type_handler($post_type, $args) {
  do_action("my_registered_{$post_type}_post_type", $post_type, $args);
  
}

// Replace foo with your post type slug
add_action('my_registered_foo_post_type', 'my_registered_foo_post_type_handler', 10, 2);
function my_registered_foo_post_type_handler($post_type, $args) {
  remove_action(current_filter(), __FUNCTION__, 10, 2);  // only run once
  
  // var_dump($args);
  // change your args here
  $args->public=true;
  $args->publicly_queryable=true;
  $args->exclude_from_search=false;

}