diff -r 48c4eec2b7e6 -r 8c2e4d02f4ef wp/wp-admin/includes/class-wp-ms-users-list-table.php
--- a/wp/wp-admin/includes/class-wp-ms-users-list-table.php	Fri Sep 05 18:40:08 2025 +0200
+++ b/wp/wp-admin/includes/class-wp-ms-users-list-table.php	Fri Sep 05 18:52:52 2025 +0200
@@ -467,9 +467,25 @@
 		$user = $item;
 
 		/** This filter is documented in wp-admin/includes/class-wp-users-list-table.php */
-		echo apply_filters( 'manage_users_custom_column', '', $column_name, $user->ID );
+		$column_output = apply_filters( 'manage_users_custom_column', '', $column_name, $user->ID );
+
+		/**
+		 * Filters the display output of custom columns in the Network Users list table.
+		 *
+		 * @since 6.8.0
+		 *
+		 * @param string $output      Custom column output. Default empty.
+		 * @param string $column_name Name of the custom column.
+		 * @param int    $user_id     ID of the currently-listed user.
+		 */
+		echo apply_filters( 'manage_users-network_custom_column', $column_output, $column_name, $user->ID );
 	}
 
+	/**
+	 * Generates the list table rows.
+	 *
+	 * @since 3.1.0
+	 */
 	public function display_rows() {
 		foreach ( $this->items as $user ) {
 			$class = '';