So, I have an HDR file that is lighting my scene (https://hdrihaven.com/hdri/?c=skies&h=yellow_field this one, to be specific), but it's casting rather sharp shadows onto my scene. This is undesirable in the context of my scene, but I'm not sure how to make it do anything else.
How do I soften the shadow cast by this HDR texture?
EDIT The answer given in the "duplicate question" section is not satisfactory to me. I wish to use this HDR file, adding additional light-bouncing objects would not work astonishingly well due to the nature of the scene, and blurring the HDRi as shown in that answer completely changes the appearance of the scene.