Tried to scan to new Document the Flexipdf 2022 Professional subscription.
The request box does not give options for scan DPI, B/W or Colour select and the Flatbed/autofeed option does not work.
The resulting document is low resolution ?DPI and black and white and the sheet feeder was not called although selected.
All my other programs bring up the Epsom scanner options Panel (too select DPI Colour/BW autofeed/flatbed).
Windows 10 21H1 Epson Workforce 320 (WIA EPSOM BX305) with Sheet feeder.
Opened problem report 15th Oct 2021
Input from scanner B/W and no Epson Scan option Panel
Re: Input from scanner B/W and no Epson Scan option Panel
Most of them work the simple way you describe. In my case, the only one that works the way you want to is HP Twain.
When I select HP Twain it opens the HP scanning app where I can select DPI, Color, etc.
Please try to select the entry on that menu that does the same for your Epson scanner