When I add markers to a path in Inkscape (e.g. arrowheads), they do not exactly end at the end of the path.
How can I position the arrowhead so that it exactly ends at the end of the path?
The path marker functionality in Inkscape is woefully limited. I would suggest creating your arrowhead as a separate path object, from scratch. It’s definitely cumbersome for designs that include a large number of arrows, but you will have a lot more control over the size and position of the arrowhead.