If you wish to add custom style to the dashboard add this code to the functions.php
function my_custom_style() {
echo '<style>
#menu-posts-elementor_library, .wrap > form:nth-child(3) > select:nth-child(2) > option:nth-child(2), option[value="818"], #wp-admin-bar-wpforms-menu{
display: none;
}
</style>';
}
my_custom_style();
}
}