Mac 13inch 2020 model-M1chip- Lenovo USB C gen2 dock station--> Unable to connect dual monitors
You can't connect two external monitors to M1 MacBooks with the extend mode. There exist a work around consisting of connecting one monitor through USB-C and the other with the help of DisplayLink software, but I do not know how good is this working. Possibly, we will see Big Sur update for 2020 MacBooks that enables 2 external monitors in extended mode.