Continuous Glucose Monitoring in Non-Insulin Treated Type 2 Diabetes: Continuous vs. Periodic Use

The goal of this clinical trial is to test whether wearing a continuous glucose monitor (CGM) part-time works as well as wearing it full-time in adults with type 2 diabetes who do not use insulin. The main questions it aims to answer are: * Does wearing CGM part-time (2 weeks per month) control blood sugar as well as wearing it continuously? * How do the two wearing patterns compare for blood sugar levels throughout the day, weight, blood pressure, and patient satisfaction? Researchers will compare part-time CGM use to continuous CGM use to see if part-time use is just as effective for blood sugar control. All participants will: * Wear a CGM device continuously for 3 months to learn how their blood sugar responds to different foods and activities * Then be randomly assigned to wear CGM either part-time (2 weeks each month) or continuously for another 3 months * Replace the CGM sensor on their arm every 2 weeks * Use a smartphone app to track their blood sugar readings * Visit the clinic 3 times for blood tests and check-ups * Receive education on adjusting diet based on their CGM readings * Keep their current diabetes medications unchanged during the study The study will last about 6 months total. Participants will use the FreeStyle Libre 2 CGM device, which is already approved for use in people with diabetes.