I guess things can have multiple names, too. In German you would also say Waldfrüchte (forest fruits) to mixed berries, but they are still Beeren (berries) as well. If you search for “postre de bayas” or “pastel de bayas” many recipes pop up. And sure, Spanish is obviously a diverse language with the divide between Spanish from Spain and from Latin America.

Disclaimer: I’m part of the scientific bubble so that’s why I may here more terms that are botanical in Spanish ;)