Pat the boneless pork chops completely dry with paper towels. Season both sides with half of the salt and black pepper.
Heat the olive oil in a large skillet over medium-high heat. Add the pork chops and sear for 3-4 minutes per side until they develop a nice golden-brown crust. Remove them from the pan and set aside on a plate.
Reduce the heat to medium. Add the butter to the same skillet. Once melted, add the sliced mushrooms and cook undisturbed for about 4-5 minutes until they release their moisture and turn deeply brown.
Stir in the minced garlic and thyme, cooking for just 30 seconds until highly fragrant.
Pour in the chicken broth to deglaze the pan, using a wooden spoon to scrape up all the delicious browned bits from the bottom. Let it simmer and reduce by half (about 2 minutes).
Lower the heat and stir in the heavy cream and the remaining salt and pepper. Let the sauce simmer gently for 2-3 minutes until it begins to thicken.
Return the pork chops (and any juices from the plate) to the skillet. Spoon the creamy mushroom sauce over the meat and let it simmer for 1-2 minutes until the pork is heated through. Serve immediately!