Shanghai as a metropolis, more and more foreigners come to Shanghai to start their own businesses and work in the city, which brings a lot of Mandarin factors, and the young people of Shanghai are also influenced by foreign cultures, and the local traditional arts have been gradually forgotten, the classroom is always taught in Mandarin, and most of the teachers are foreign, which leads to less and less room for speaking Shanghainese, and a lot of the nouns are also replaced by the Mandarin phonetics. Sometimes, there are even words that you simply don't know how to express in Shanghainese, but Mandarin is mixed in.
There are fewer and fewer recognizable fluent Shanghainese standard voices nowadays, so if you want to listen to the standard ones, it's better to listen to Metro 792's Talking Afgan for a better taste.