In the census litigation, the Court denied the Justice Department's application for a stay over noted dissents from Justices Thomas, Alito, and Gorsuch:
supremecourt.gov/orders/courtor…
supremecourt.gov/orders/courtor…
It's at least possible (if unlikely, in my view) that he voted to grant the stays but declined to publicly note as much.
In the second pair of cases, though, there's no need to assume:
supremecourt.gov/orders/courtor…
supremecourt.gov/opinions/18pdf…
Especially in the last two examples, though, I can't imagine the Chief Justice voting the same way if he _wasn't_ the swing vote.
/end