Hi! I'm currently an M1 at OU and don't know the answer to your question, but I wanted to mention that last year I believe that while a few people heard back within a week of their interviews, most heard back on 12/13. During our interviews, they specifically told us not to worry if we heard about applicants receiving their decisions while we hadn't heard anything because most people hear back near the end of the semester. I don't know how the pandemic will affect this year's cycle, but I would think most people will get answers on Friday, 12/18, the last day of classes. Hope this helps!