JWST reportedly observes changing water clouds on brown dwarf WISE 0855

A science post asks which object JWST first confirmed changing water clouds on, offering WISE 0855 as one of three choices. The cold brown dwarf is described as 7.5 light-years away. An account of the observation says its water clouds thickened and thinned during 11 hours of monitoring, while temperature changes linked to rotation suggested shifting weather.