Sometimes, but that was primarily because the job was very dull and didn't actually require much work. I would some days do absolutely nothing and it wouldn't matter at all (and I stopped feeling guilty before too long because I was being paid so little). When I was working from the office I would usually be motivated by people being around and fill those gaps of boredom with extra work, but when working remotely I realized how pointless that busywork was.

I got a new job around 6 months ago, and now I feel more productive than ever because it's interesting and fulfilling.