Android Chrome browser is making a duplicate of every photo downloaded to my external SD card
This answer I found on google.support and I  Copied and pasted, I'm not sure if that's okay? Or not I'm sure I will find out momentarily .
We are aware of this issue and are working on a fix for this. To resolve this immediately, you'll need to reset the permission for the Google Photos App by following the steps below. Once these steps are complete, the duplicates should disappear after a few minutes.

Long press the Photos App icon
Tap the &quot;i&quot; button on the top right corner to go into App info
Tap &quot;Permissions&quot;
Tap &quot;Storage&quot; under Allowed
Tap &quot;Deny&quot; and tap &quot;Deny anyway&quot;
Re-open the Photos app
Tap &quot;Allow&quot; when prompted with &quot;Allow Photos to access photos, media, and files on your device?&quot;
Hope that helps....    :)