They all lip sync and have for a long time. Even on the old tv show back in the 60’s and 70’s, American Bandstand I think, all but 2 performers lip synced during that whole program’s history. BB King was one who didn’t and I don’t know the other.
I may be the only one that feels this way but my impression of recent SB halftimes and commercials is that they're pressing and trying too hard. The commercials and halftimes from years back seemed far simpler and more entertaining to watch because they weren't such over-the-top "productions'. Now get off my lawn.