Hide widgets by widget instance ID and membership level to protect specific widgets for members only.

my_pmpro_widgets_by_membership_level.php

<?php
/**
 * Hide widgets by widget instance ID for protected members only content.
 * Update the $hide_widget_instances_array with the array of widget instance IDs you want to filter.
 * Update the pmpro_hasMembershipLevel check for your membership level IDs.
 *
 * Add this code below to your PMPro Customizations Plugin - https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
 */
function my_pmpro_widgets_by_membership_level( $instance, $widget, $args ) {

	// Set an array of widget areas by ID to filter.
	$hide_widget_instances_array = array( 'text-3', 'recent-comments-1' );

	// Check if this widget instance should be filtered.
	if ( in_array($widget->id, $hide_widget_instances_array ) && ! pmpro_hasMembershipLevel( 1 ) ) {
		return false;
	}
	return $instance;
}
add_filter('widget_display_callback','my_pmpro_widgets_by_membership_level', 10, 3);

@produktivweb please open a support ticket on www.paidmembershipspro.com/support for help with this as it would require a bit more work and explanation than we can provide in the comment section here.