Hide Admin Menu

Hello,

I’m trying to hide the menu for certain users, tried this two codes but don’t work:

add_filter('acf/settings/show_admin', '__return_false');

taken from here:
https://www.advancedcustomfields.com/resources/how-to-hide-acf-menu-from-clients/

And this one:

function my_acf_init() {

	acf_update_setting('show_admin', false);
}
add_action('acf/init', 'my_acf_init');

taken from here:
https://www.advancedcustomfields.com/resources/acf-settings/

Many thanks
Gus