TS4 and ThinkPad T14 Gen 3

Hi, I‘m trying to use the TS4 to switch between my private MacBook Pro and the ThinkPad T14 I have for work. It works with the MBP, but I have trouble getting both monitors to work as well as no ethernet connection with the T14. Does anyone have an idea? The monitors are HP Omen 27i and 27k.