Our experience:
1. Petitioner got email from NVC (with case number, and notification that our case was being sent to embassy) at almost 6 months (~175 days) after NOA2. June 2, 2022 NOA2 and got NVC 'in transit' email on Nov 22, 2022.
2. I think we sent first email (requesting case #) to NVC at about 60 days (after NOA2). In total, sent 3 emails. Never received a response to any email sent. We also submitted an online (form) inquiry. We did receive a response to that, I believe it took about 5 weeks. Response didn't contain any useful info. Just that they had our case, and were working on it.
3. It took 3 days from 'In Transit' to 'Ready'. Note - have not received any communication (yet) from the (Manila) embassy. We were using CEAC to check status.
4. Our case is 'Ready' (Manila), since Nov 25, and have not received any communications (thus far) from the embassy.
5. Completed DS-160 after case was 'Ready'.