i´ve installed an older Site in SS 2.2 on webserver now, and when i save a new page or edit an existing page it will be published.
Even when i save it in the draft-site with save button.

Only when i add ?stage=Live to the URL I get the Live Version even when I`m loggedout.
My Client and anyone else in the World gets the Draft Site by calling the "native"-URL www.XXXX.de
It makes me crazy!

No, i have no environment_type set.
But i have a little Custom controller that gets ChildPages this way:

$mypage = DataObject::get_by_id("Page", $pageID);

         $children = $mypage->Children();
               
               
            foreach($children as $child) {
                     $target = $child->ID;
                     $count++;

                     
                     $ImageButton .= $child->naviImage($target, $first);
            }
         
            return $ImageButton;

in my case $mypage->Children(); retzrns the whole SiteTree with unpublished Sites on the ?stage=Live
How can I prevent that output in the foreach?