01 - Bring a large pot of salted water to a boil. Add linguine and cook until al dente. Reserve 1/2 cup pasta water, then drain and set pasta aside.
02 - Pat shrimp dry and season lightly with salt and black pepper.
03 - In a large skillet over medium-high heat, melt 2 tbsp butter with 2 tbsp olive oil. Add shrimp in a single layer and cook 1-2 minutes per side until pink and opaque. Remove shrimp and set aside.
04 - Reduce heat to medium. Add remaining butter and olive oil to skillet. Cook garlic and red pepper flakes for 1 minute until fragrant, avoiding browning.
05 - Pour in white wine or broth, scraping up browned bits. Simmer for 2 minutes to reduce slightly.
06 - Stir in lemon juice and zest. Return shrimp and any accumulated juices to skillet. Toss gently and heat through for 1 minute.
07 - Add linguine and half the parsley to skillet. Toss thoroughly, adding reserved pasta water as needed to create a silky sauce coating the pasta.
08 - Adjust seasoning with salt and pepper. Serve immediately garnished with remaining parsley, Parmesan cheese, and lemon wedges.