Game concept · By God Alone
Chapter Type
The game also links it as Chapter Types.
From the game's encyclopedia
There are four Chapter Types in The Christian Church, they categorize The Christian Church Chapters.
Chapter Types: Instability, Crisis, Zeal, and Stability
The game's text for patch 1.20.1.2. Words in blue are entries of the encyclopedia: hover one to read it, as in the game.
Chapter Type is an entry of Crusader Kings III's in-game encyclopedia (By God Alone). The game explains it: "There are four Chapter Types in The Christian Church, they categorize The Christian Church Chapters." It is part of The Christian Church. It covers Instability Chapter, Crisis Chapter, Zeal Chapter and Stability Chapter. The game also links it as Chapter Types. Patch 1.20.1.2, from game/common/game_concepts/pam_game_concepts.txt and game/localization/english/game_concepts_l_english.yml.
Source: game/common/game_concepts/pam_game_concepts.txt, game/localization/english/game_concepts_l_english.yml and the English localisation, Crusader Kings III 1.20.1.2.