uk-dgm MCQ (SBA): STOPP Criteria - NSAID in CKD and Heart Failure

A 82-year-old man with moderate frailty (CFS 6) is reviewed in a geriatric outpatient clinic. He has heart failure (LVEF 35%), type 2 diabetes (HbA1c 58 mmol/mol), CKD stage 3b (eGFR 38 mL/min/1.73m²), and osteoarthritis. He takes Ramipril 5 mg, Bisoprolol 5 mg, Furosemide 40 mg, Metformin 1 g BD, Gliclazide 80 mg BD, and Naproxen 500 mg BD. Which medication should be stopped FIRST according to STOPP/START criteria?