Rinse shrimp and pat dry with a paper towel. Season with Flavor God seasoning and salt/pepper.
Melt half of the butter in a large skillet over medium-high heat. Add half of the minced garlic, then add shrimp in a single layer in the skillet. Cook for about 1-2 minutes or until shrimp is partially opaque on top and the bottom is pink and beginning to brown and form a crust from the butter. Flip shrimp and continue cooking on the other side until cooked through. Set aside.
Repeat cooking process with remaining shrimp, butter, and garlic.
Whisk all dressing ingredients until smooth. Set aside.
Assemble salad with arugula as base, then layer grapefruit, avocado, shallots, shrimp, and almonds. Top with dressing before serving.