How to View and Export Only Edited Images in Lightroom Classic

Once I'm done editing photos in Lightroom, I like to later export them or move them to another folder... such as a "web" folder or something similar. The thing is, I don't edit all of the given images in a folder, but only certain, individual ones. So when viewing my library, the ones I edited in Lightroom are mixed in with all the non-edited ones. They are not in order of which photos have been edited or not, but mixed in and scattered into the entire folder. So when I go to export ONLY the edited ones, I have to search around and distinguish which ones look like they were processed via Lightroom, add them to a quick collection, then export them from the quick collecton. Is there a simpler way to view ONLY the edited images you edited in Lightroom? I tried sorting by file name, by edit time, etc, but they're still all jumbled with the other pictures. Unless I rename the files, the "sorting by filename" will not work. I really wish I knew an easier way to view/sort only the images I had edited or somehow manipulated in Lightroom, so selection for exporting those would be much easier. I wouldn't have to squint my eyes to look for the pictures that appear to have been edited in Lightroom amongst the entire folder. Does anyone know of a solution? Thank you.

I use Lightroom 3.