Yes, Hrútafjörður is worth a short pause when your day is already crossing northwest Iceland and you want quiet fjord scenery, Borðeyri context, or a gentle start toward Strandir. It is not a reason to overload a tight day.
Hrútafjörður is the kind of place that rewards travelers who notice transitions. It sits where Húnaflói, North Iceland, and the Westfjords begin to overlap, with low hills, farms, tidal water, and small settlements giving the drive a slower edge.
Add Hrútafjörður when a self-drive day needs a calm shoreline pause before turning toward the Westfjords, Bjarnarfjörður in Strandir, or Drangsnes. Skip it when the day is already chasing bigger North Iceland stops and every extra pause creates pressure.
The best use is practical: stop briefly if the weather is clear, let the fjord mark the change in region, then decide whether the route should continue toward Strandir or stay with the Húnaflói side of North Iceland.