As for character model bones, the devs are looking to reduce the number of them from 80 down to 70 after testing found some erroneous additions to model skeletons (developer protip: your character model probably doesn’t need two clavicle bones). This planned adjustment will address a number of issues including clipping, weird body part movement, and a reduction in animation quality among other things, while also improving overall performance.
Content retrieved from: https://massivelyop.com/2020/11/04/the-repopulation-talks-up-its-new-inventory-system-and-plans-to-remove-character-model-bones/.