Season the beef chuck roast on all sides with salt and pepper.
Heat olive oil in a large skillet over medium-high heat and sear the roast until a deep brown crust forms, approximately 4 minutes per side.
Transfer the seared roast to the center of a 6-quart slow cooker.
Place the potatoes, carrots, and onion wedges around the perimeter of the beef.
In a small bowl, whisk together the beef broth, Worcestershire sauce, and minced garlic, then pour the mixture over the beef and vegetables.
Lay the thyme and rosemary sprigs on top of the roast.
Secure the lid and cook on the low setting for 8 to 10 hours until the meat is fork-tender.
Remove the herb sprigs and transfer the roast and vegetables to a serving platter, allowing the meat to rest for 10 minutes before slicing or shredding.