Black Panther: Wakanda Forever introduced Riri Williams to the MCU ahead of her appearance in Ironheart, perfectly setting up yet another MCU project. Dominique Thorne debuted as the genius MIT student, Riri Williams, in Black Panther: Wakanda Forever, brought to Wakanda by Shuri and Okoye after her vibranium detector was used by the CIA to trace vibranium in the ocean, alerting the nations of the world to the existence of Talokan beneath the waves. Williams was at the core of the battle between the Wakandans and Namor's army but wasn't simply relegated to a plot McGuffin since Williams herself suited up and fought alongside the new Black Panther.
https://screenrant.com/riri-williams-stark-tech-suit-armor-wars-setup/