Thanks, but those are just hooks in the app (and stuff like DSFile disconnect every here and there)
You still need to manually save each document where you want it, instead of the app doing it automically in batch at every scan. With dedicated scan apps I never need to think about it, just scan and I know it's been done.
https://www.techrepublic.com/article/how-to-use-the-files-ap...
I use iCloud to do exactly what you say and trash the physical copies, but it should be possible with anything in the files app AFAIK.