From an opinion by Judge Kavanaugh:

This case turns on whether a government agency may provide employees with free bottled water even when safe and drinkable water is available from water fountains at their work sites. Under federal appropriations law, the answer is no.

Also, of note, is that Judge Ginsburg who joined the opinion officially announced his assumption of senior status.

1 As of the date this opinion was published, Judge Ginsburg had assumed senior status.

H/T Bashman