Preheat oven to 175°C (350°F). Grease and line a 9x5 inch loaf pan or 9-inch round cake pan with parchment. Grease the parchment.
Whisk flour, baking powder, baking soda, and salt together in a large bowl.
In a separate bowl, whisk yogurt, sugar, eggs, oil, lemon juice, lemon zest, and vanilla until smooth and fully combined.
Pour wet ingredients into dry. Fold gently with a rubber spatula until just combined. Do not overmix.
Toss blueberries with 1 tablespoon of flour until lightly coated.
Fold floured blueberries into the batter with as few strokes as possible.
Pour into prepared pan. Smooth the top. Scatter extra blueberries over the surface if desired.
Bake 48–55 minutes (loaf) or 40–45 minutes (round) until a toothpick comes out with a few moist crumbs and the top is deep golden with a center crack.
Cool in pan 15 minutes. Lift out using parchment and transfer to a wire rack. Cool at least 30 minutes before glazing.
Whisk powdered sugar, lemon juice, and lemon zest until smooth and pourable.
Pour glaze over the cooled cake and let it run naturally down the sides. Scatter lemon zest over the wet glaze immediately.
Allow glaze to set 15–20 minutes before slicing.