Game concept
Government Authority
From the game's encyclopedia
Government Authority represents the general power that a Ruler wields over their Vassals.
Different Governments have different form of Government Authority. For example, Feudal Realms use Crown Authority, Clans use Tribal Authority, and Administrative use Imperial Bureaucracy. Increasing Government Authority costs an amount of Prestige depending on the level and the ruler's Learning Skill.
Vassals dislike higher levels of Government Authority, and lowering it is the primary goal of Liberty Factions.
Not all Governments have Government Authority.
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.
Government Authority is an entry of Crusader Kings III's in-game encyclopedia. The game explains it: "Government Authority represents the general power that a Ruler wields over their Vassals." It is part of Law. It covers Crown Authority, Tribal Authority, Imperial Bureaucracy, Dominance, Celestial Bureaucracy and 2 more. Patch 1.20.1.2, from game/common/game_concepts/00_game_concepts.txt and game/localization/english/game_concepts_l_english.yml.
Source: game/common/game_concepts/00_game_concepts.txt, game/localization/english/game_concepts_l_english.yml and the English localisation, Crusader Kings III 1.20.1.2.