Can't speak for others, but what I do:

I copy the photos from my camera to my PC. I then use rapid-photo-downloader to bulk rename and move the files to where I store all my DT files. I then import the directory using DT.

DT does have some DAM capabilities (tagging, etc). Just don't use it to copy/rename/move.

This is pretty much my workflow too, manually copy from camera to PC, then import them into Darktable.

Edit and delete from within darktable.