Although the “Other images & Videos” toggle is “off”, any media from any folder will get uploaded, even from the Download folder.
The expected behaviour is with the “Other images & Videos” toggle “off”, only medias from the “DCIM” folder gets uploaded.
As for right now, the “Other images & Videos” toggle makes no difference, whether it is “on” or “off”.
I may send it in the next few days as I’m quite busy, meanwhile I sent the link to a few people I know that has this issue as well to report it with the link in description, as they worry about personal info. @Tom