Pat steaks very dry. Season both sides evenly with salt and pepper.
Heat a heavy skillet over medium-high until hot, 3–4 minutes.
Add olive oil and swirl to coat the pan.
Sear steaks until a deep brown crust forms, 2–3 minutes per side.
Lower heat to medium. Add butter, garlic, and thyme to the pan.
Tilt the pan and baste steaks with the melted butter for 1–2 minutes. Cook to desired doneness.
Splash in lemon juice, then transfer steaks to a plate. Rest 5 minutes, slice, and serve.