Forum/tracker for green card/VISA times?

Is there any website or forum or anything where people self report how long their VISA/Greencard process is taking?

I know that USCIS has a processing times web page, but those are averages and not super up to date.

I got my EB-3 biometrics appointment scheduled for mid November and I'm curious to know, even if anecdotally, how long people are waiting after their biometrics to get the GC