Pat chicken dry, season with salt and pepper. Heat oil in a large skillet over medium-high heat.
Sear chicken skin-side down 6–8 minutes until golden; flip and cook 4 minutes. Remove to a plate.
Reduce heat to medium, add 1 tbsp butter and mushrooms; cook 4–5 minutes until browned.
Stir in 2 cloves garlic, thyme, honey, soy sauce, and vinegar; simmer 1–2 minutes.
Return chicken to pan, nestle into mushrooms, skin up. Dot with remaining butter and cover.
Cook 12–15 minutes until internal temp reaches 165°F, spooning sauce over chicken once.
Finish with parsley and remaining minced garlic if desired; serve with rice or mashed potatoes.