Changing it or seeing other kingdoms' court language has become impossible, please give us back the possibility to check these out in the general menu(R2 menu for Ps5).
In Ps5(don't know in the other versions) whenever you click on the learn language option in a culture's tab a bug comes up where the only thing you can see there is a generic tab called _name clearly a placeholder for the respective language that should show, you cannot spend the prestige to adopt that language for your royal court, the game calls it "Invalid Court Language" rendering the option useless.
In Ps5(don't know in the other versions) whenever you click on the learn language option in a culture's tab a bug comes up where the only thing you can see there is a generic tab called _name clearly a placeholder for the respective language that should show, you cannot spend the prestige to adopt that language for your royal court, the game calls it "Invalid Court Language" rendering the option useless.