Here's a 2016 Nokia blog article about it: https://www.nokia.com/blog/water-cool-new-way-take-heat-base...

Besides the video being totally cute I remember Ben Krasnow (Applied Science) mentioning in his video about making liquid air that this was frequently used in mobile base stations. I thought it would perhaps be used for super conductivity, but pretty definitely for cooling (dude in the video says other stations are air cooled). Am I thinking of something else?