The timeline isn't exactly the same. Although USCIS seems to be forwarding petitions to NVC faster than a couple of months ago, NVC is now taking its time to assign case numbers.
Now it takes around 3 months to get a case number, some people had to wait slightly less, but the mark seems to be 90 days.
Keep in mind, NVC phone lines have been taken down a few months ago so you can't call them, but you can send them an email. I'd suggest a first inquiry after 30 days and you can use either NVCResearch@state.gov or the public inquiry form here: https://travel.state.gov/content/travel/en/us-visas/visa-information-resources/ask-nvc.html . Use NVC Research if you don't know if your petition has reached NVC yet, they're faster and generally more accurate!