can't see my images!

That really sounds suspect to me. I don't believe that is the right answer. A NEF file is basically the same from that camera as any other camera. It's just that Adobe needs to provide support for each individual model.

Litterly just got off the phone with Apple Care because I am not able to preview my images when I view them on my iMac. The newest update for iMac, Big Sur, isnt compatbile with Nikon Z series. I was told I'd have to wait for Nikon to update their stuff in order to fix the problem. I wondering if i should go back to Catalina to make life easier. 

I looked at your illustration. You are obviously working with Lightroom for cloud. The only suggestion I can make would be to go to the preferences, performance section, and disable graphics acceleration and see if that makes the difference. Word documents really are not the best way to show screenshots, and it's best to use the tools to include the image as part of the message as has been demonstrated.

You have posted in the wrong community

Try: https://community.adobe.com/t5/lightroom/bd-p/lightroom?page=1&sort=latest_replies&filter=unresolved

Also, do not attach files. Most members absolutely refuse to open them. It is a security issue. A trust issue. Instead, use the insert image button

Can you repost this as a  jpg file and not a word doc? Are you using Lightroom Classic or Lightroom (cloud based).