 While ignoring the details, The Dënë Sųłinë́ language (spoken by the Dené or Chipeweyan people of Northwest Canada) arguably does not have a mass/count distinction whatsoever, nor do the Amazonian languages Karitiana or Yudja. (See Pelletier 2011 p31, and a challenge to this in Chierchia 2021. See Wiltschko 2012 for an examination of languages which lack a mass/count distinction, and for extremely recent and copious work on this see the Kiss, Pelletier, and Husic (eds.) 2021 collection).