Make the vinaigrette: In a small jar or bowl, combine olive oil, lemon juice, lemon zest, red wine vinegar, garlic, oregano, parsley, black pepper, and red pepper flakes (if using). Shake or whisk until emulsified.
Cook the pasta: Bring a large pot of unsalted water to a rolling boil. Add farfalle and cook until al dente per package directions.
Cool and drain: Drain, then rinse under cold water for 20–30 seconds to stop cooking. Shake well to remove excess water.
Assemble: In a large bowl, combine cooled pasta, chickpeas, cucumber, tomatoes, olives, and red onion.
Dress: Shake the vinaigrette again. Pour about ¾ of it over the salad and toss gently to coat.
Finish: Fold in the feta. Drizzle the remaining dressing over the top.
Rest & adjust: Let stand 15 minutes at room temperature, then taste and adjust acidity/pepper to preference.