All smokers steal time, comes with the territory.
Rank has its privileges. I'm not too concerned about unproductive leaders as long as they aren't waving it in my face. I had one TL that was way too chummy with a few TMs in our area. They would "zone" in a cluster and talk nonstop. Or sit around bullshitting in TSC. One time they were actually making a TikTok dance video on the salesfloor! So unprofessional.
If you're going to goof off and be a crappy manager, at least hide it a little better!