Flew UAL JFK-NRT in August as well as NRT-SFO-EWR. The JFK-NRT and NRT-SFO flights were Business while the SFO-EWR were in Domestic F. On the NRT legs all passengers had a nice individual bottle of water waiting for them when they awoke. FAs did an excellent job keeping the PAXs well hydrated. The SFO-EWR flight as well had those individual bottles. No problems for me at least with water on UAL.
Delta usually has those individual water bottles waiting at your seat when you board up front.