In budgies, the males are the good talkers & their vocabularies can be quite large. Some speak quickly & in high-pitched voices, so the humans don't recognize the words & don't reward the speech, which sometimes disappears. Female budgies are rarely good talkers.
In Linnies, both males & females can talk. They have a more limited vocabulary, but the ones who speak, often speak a lot.
Both species have personalities much bigger than their physical size.
My linnies are quieter than my budgies.
Both are very entertaining companions.