How limit access to a paragraph type by role, like it is for content types?
Simply enable the Paragraphs sub-module Paragraphs Type Permissions. It provides CRUD permissions per Paragraphs Type.

http://cgit.drupalcode.org/paragraphs/tree/modules/paragraphs_type_permissions/paragraphs_type_permissions.info.yml?h=8.x-1.x


  Allows users to configure permissions for individual Paragraphs
  types.