Placeholder for the "Links" field text shown with layout field

Hey, are you using the "Field formatter with inline settings"?

The solution in 🐛 Field formatter with inline settings is missing field formatters from the referenced (media) entity type Active could possibly fix your problem. The "Field formatter with inline settings" never used the "real" field definition, but instead created a new one, meaning some field definition settings were reset to their default values.

Ah sorry, it says in the title, that you are using the "Field linker" formatter.