Do you consider Jewish Cherubim, Christian Cherubim, and Jewish Chayot Hakodesh to all be separate types of Angels? Or are they all the same thing.

In Christianity, the Cherubim are identified as the Tetramorphs seen by the Prophet Ezekiel in the Bible. However, in Judaism, the Tetramorphs seen by Ezekiel are considered a different class of angels called the Chayot Hakodesh which are separate from the Jewish Cherubim. The Jewish Cherubim seem to largely be described as angels similar to sphinxes, Shedu, and Lamassu. They have wings, child like human faces, and possibly the bodies of lions. I am trying to figure out where the Jewish Cherubim and Chayot Hakodesh would fit into the Celestial Hierarchy.