This seems to be a widespread issue. My app has been in "Waiting for Review" since Jan 27 (technically, I submitted the app on Jan 23, but I thought "resubmitting" it after no movement for 4 days would nudge it, but in hindsight, that likely made it worse), and I've submitted two requests to Apple support with no response.

This situation tracks. My app submission has been in "Waiting for Review" since January 27. I contacted App Review Support after 5 days, but never heard back. Additionally, I went a step further and scheduled an App Review appointment with the team, but they declined the request with no explanation.