Product image Still zoom if I remove mouse cursor from image in magento 2

You need to replace the code of lib/web/magnifier/magnifier.js in your theme as below.

Find

$(document).on('mousemove', onMousemove);
_init($box, gOptions);

Replace

$box.on('mousemove', onMousemove);
       
/*Code By Jaydip*/
$box.on('mouseleave', mouseleave);
    function mouseleave(e) {
         onThumbLeave();
         isOverThumb = false;
         $magnifierPreview.addClass(MagnifyCls.magnifyHidden);
    }
/*Code By Jaydip*/
       
 _init($box, customUserOptions);