Citrusy Garlicky Grilled Chicken Breasts With Grilled Potatoes

Name: Citrusy, Garlicky Grilled Chicken Breasts With Grilled Potatoes
Ingredients: For the grilled chicken breasts:; 10 garlic cloves, peeled; 1/2 cup extra-virgin olive oil; 1 navel orange, zested and juiced (about 1/4 cup orange juice); 3 limes, zested and juiced (about 1/4 cup lime juice); 1 tablespoon kosher salt; 1 tablespoon dried oregano; 3 pounds bone-in, skin-on chicken breasts; 1 tablespoon neutral oil, for the grill; For the grilled potatoes:; 4 medium-size potatoes, such as Yukon Golds; 1 tablespoon avocado oil; Kosher salt, to taste; 1 teaspoon paprika; 1/2 teaspoon garlic powder; 1/4 teaspoon onion powder; Fresh microgreens, for serving