Remove Lightbox linking from post images – Remove pointer-events causes problems

Hi
addition to the closed topic
https://kriesi.at/support/topic/remove-lightbox-from-images/

The suggested adjustment with
.big-preview.single-big {
pointer-events: none !important;
}

causes that nothing can bee linked in the post title. All video format posts do not work.

Is there a way to target only to image formats?

Thanks, Oliver