Place cubed potatoes in a large pot, cover with cold salted water, and bring to a boil. Cook until fork tender,about 15–18 minutes. Drain and set aside.
While potatoes cook, thinly slice cucumbers and toss with salt. Let sit 5 minutes, then squeeze out excesswater. In a bowl, whisk together sour cream, dill, vinegar, and sugar. Fold in cucumbers. Refrigerate untilready to serve.
Set up your breading station: flour in one shallow dish, beaten eggs in another, breadcrumbs mixed withgarlic powder, paprika, salt, and pepper in a third.
Pat pork chops dry. Dredge each chop in flour (shake off excess), dip in egg, then press into seasoned breadcrumbs until fully coated.
Heat about 1⁄2 inch of oil in a large skillet over medium-high heat. Once shimmering, add pork chops (work in batches, do not crowd the pan). Fry 3–4 minutes per side until deep golden brown and cooked through. Transfer to a wire rack to rest.
Mash the drained potatoes with butter and sour cream until smooth and creamy. Season generously withsalt and pepper.
Spoon mashed potatoes into bowls. Slice pork chops and fan over the top. Add cucumber salad alongside.Top with pickled red onion and fresh dill. Serve immediately.