They broke quicklook with Mojave too. You used to be able to press spacebar to get a preview of a file, then press shift and move to the previous file in a find

They broke quicklook with Mojave too. You used to be able to press spacebar to get a preview of a file, then press shift and move to the previous file in a finder list, highlighting both of them but showing you a preview of the most recent item. That way, you could work through a list of files deciding which ones to delete or move to another folder whilst previewing them. In Mojave they broke this and it only ever displayed the first item, making quicklook now incredibly useless for me. I sometimes wonder if they ever test anything.