Yes—darktable lets you reduce most automatic edits, but not all processing can be disabled for RAW files.

In lighttable, go to Preferences > Processing and turn off the relevant “auto apply” options. You can also review module presets and change when your own presets are applied automatically. Built-in presets generally can’t be edited.

That said, some processing is essential for any RAW file to display properly. For example, demosaicing is required because RAW data is not yet a finished color image. Camera-derived white balance and auto-rotation/orientation may also still be applied.

If what you’re seeing is the camera’s embedded JPEG preview rather than the RAW rendering, check Settings > Lighttable and choose RAW instead of embedded JPG.

So: you can disable most optional auto-applied modules like base curve/sharpen via preferences, but you can’t turn off the fundamental RAW-development steps needed to produce a visible image.