I am currently trying to learn new languages.
I've heard of this method calling passive learning for language learning. However, there are many articles that say it's useless (https://www.mezzoguild.com/passive-language-learning).
So, as I ask, how effective is passive learning for learning pronunciation? Are there well known psychological studies that prove otherwise? Is it really worth it? How do people really learn the pronunciation of a second language? Seriously, is it a waste of time?