At least 10? So there's been 40+ episodes you think are filler? Out of the 10 episodes so far this season which ones are filler? Because I sure as hell don't think a single one has been filler.
I'm oversimplicating when I say every episode that isn't the SX.1 premiere, the SX.1 finale, the SX.2 premiere and the SX.2 finale, but not by much.
It didn't always feel that way to me. Probably set in around S4 or so. It really didn't help when the overarching plot seemed to be cyclical. Find a new place/people. Stuff goes well for a while. Then stuff goes bad. Big fight and then on to the next place. Lather rinse repeat for the farm, the prison, Woodbury, Terminus, Alexandria, The Saviors. It just doesn't make for compelling television for me when each season follows that cycle more or less.