Ad-blocking never stopped working for me. I use a combo of uBlock Origin, uMatrix, and Unhook.
If I could get the uMatrix "skin" on top of uBlock Origin that would be great.
I get it on my devices when I travel outside Bay Area and my friends everywhere else are getting the treatment that people are complaining about.
But with just uBlock Origin, haven't seen anything pertaining ads on YouTube on Google Fiber in Bay Area.