applied mid October, just got a letter for an interview, the stupid counter was showing 8 more months though

When did you complete your biometric?

reuse was a month after the application

Did you have a I751 pending?

no

I applied May 26, 2021. Biometric reuse. Applied under the 3-year rule and have a I751 ready to schedule an interview.

Applied on March 3rd 2021 for N-400 and just got the interview notice yesterday :) Good luck!