2

To get the language specific configuration of a bundle use ContentLanguageSettings::loadByEntityTypeBundle: $config = ContentLanguageSettings::loadByEntityTypeBundle($entity_type_id, $bundle);


2

The only difference is that hook_entity_load() is invoked for every entity loaded, while hook_ENTITY_TPE_load() is invoked for every entity for which the entity type is ENTITY_TYPE. If a module implemented hook_entity_load() only to handle a specific entity type, or a group of entity types, but not every entity type, its hook_entity_load() implementation ...


1

There is no difference in the overhead. The only difference is that one is called earlier than the other. I can't remember which off the top of my head though.


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