Rinse cucumbers under cold water, cut in half lengthwise, and smash each half gently with a rolling pin or flat knife to create jagged edges.

Sprinkle the smashed cucumbers with salt and place in a strainer over a bowl to catch excess moisture. Let sit for about 10 minutes.

In a medium bowl, combine minced garlic, rice vinegar, soy sauce, sesame oil, sugar, and red pepper flakes. Whisk until blended.

Transfer drained cucumbers to a large bowl and pour dressing over. Toss gently until cucumbers are evenly coated.

Before serving, garnish with toasted sesame seeds, cilantro, and green onions. Serve immediately or chill for 15 minutes for enhanced flavor.