Title: F1 family-based I-485 pending since April 2026, PD current since August anyone with a similar timeline?

Hi everyone, hoping to hear from people with a similar case and get some advice on what to expect.
My case details:
Category: Family-based F1 — unmarried adult son of a U.S. citizen
Priority date: February 12, 2018.
I-485, I-765 and I-131 package delivered: April 15, 2026.
Receipt notices received: May 5, 2026.
Biometrics completed: May 27, 2026.
Processing center: National Benefits Center, as far as I know.
Location: Charlotte, North Carolina.
My priority date became current under the Final Action Dates chart in August 2026.

I know everyone’s timeline is different, but I’m trying to understand:
Has anyone in the F1 family category with a similar timeline received approval or an interview notice?
Since I filed in April before my priority date became current in August, could some of the processing have already been completed?
Is there any way to find out whether my case is still at NBC or has moved to a field office?
Is there anything useful I can do at this stage, or should I just keep waiting?
Would appreciate hearing your experiences, especially from anyone whose priority date recently became current. Thank you!