A Southeast Asian retail website has listed two Acer Nitro 5 laptops sporting AMD Ryzen 5 3550U processors. The new APU has been mentioned on various sites in the past but has not been made official by the red team yet. It's expected the Ryzen 5 3550U APU will feature a powerful Vega 9 iGPU and offer clock rates ranging from 2.1 GHz to 3.7 GHz.
https://www.notebookcheck.net/Acer-Nitro-5-laptops-appear-on-retailer-website-with-AMD-Ryzen-5-3550U-APUs.435169.0.html