A 72-year-old man with paroxysmal atrial fibrillation, hypertension, and type 2 diabetes mellitus presents for follow-up. He is in sinus rhythm today. His CHADS-65 features include age ≥65 years and hypertension. He has no history of major bleeding. What is the most appropriate stroke prevention strategy according to the 2020 Canadian atrial fibrillation guideline?