If you have a longish bottle brush , you’ll find the access to the other end at about the 7 o’clock position in the central sump indside the dishwasher. If you remove the filters etc from the centre of the base , you’ll find a smallish hole bottom left , if you’re looking directly down into the central recess.
If you want to remove the hose entirely , you’ll need to remove decor door , door panel and lower base plate panel.
Power off if you go either route.