From the game's encyclopedia
'Limited Crown Authority' is the second to lowest level of Crown Authority. Vassals have a -10 Opinion penalty toward their Liege, and the liege may Revoke Titles and Retract a vassal's vassals. The Ruler can change between available Partition Succession Laws.
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.
Limited Crown Authority is an entry of Crusader Kings III's in-game encyclopedia. The game explains it: "'Limited Crown Authority' is the second to lowest level of Crown Authority." It is part of Crown Authority. The game also links it as Limited. 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.