The Urdu sermon or Bayan and the four Rakah is not from the sunnah. You can skip that or read the Quran.

In Pakistan, following first adaan, the imam starts jummah khutbah in urdu language. He then breaks for 4 rikah sunnah. The imam sits on member, and moazzan then calls second Adaan. The imam stands and deliver khutbah in arabic with a pause in middle (as per sunnah). Then offer 2 fard. Is it OK to reach masjid during urdu sermon well before the arabic (sunnah) khutbah and still get full barakah?