My app has been sitting in Waiting for Review status since the 16th
Waiting for Review
Same ... waiting for review since 15 October ... waiting in September for over three Weeks for !one! review...
App ID: 6747684577
If the status has been unchanged since the 16th, first check App Store Connect for any message in the submission and confirm the required agreements are active. Waiting for Review means it is queued, and there isn't a button to move it forward yourself. If it has been sitting longer than Apple's current review estimate, contact Developer Support with the app name, version and submission ID. I wouldn't cancel and resubmit just to reset the queue.
From 6 hours for the initial review to now, 7 days (and waiting).