I admittedly never cared for potato soup.
I’m sure it can be made to not be super bland.
But just like getting nailed with food poisoning from soft tacos makes you swear off soft tacos, getting hit with a bowl of “dust soup” didn’t do any favors.
Add bacon to your potato soup. I always slice it into 1/4” pieces, saute’ them until they are slightly crisp and toss them and the bacon grease into the potato soup. If there’s no bacon in it, it just tastes like plain potatoes.