This was such a pain... we tried several combos and dongles. In the end we found this to work for driving the 2nd monitor. Startech Dual Display Port adapter

This was such a pain... we tried several combos and dongles. In the end we found this to work for driving the 2nd monitor. Startech Dual Display Port adapter https://www.amazon.com/gp/product/B07C69HG33/ https://www.amazon.com/gp/product/B07C69HG33/ We have noticed that the refresh rate on the second monitor isn’t great... but it works and isn’t horrible for developers. Edit: and we also have this due to the lack of ports (Thanks Jony) HyeperDrive USB C Hub https://www.amazon.com/dp/B01MUAEI7J/ https://www.amazon.com/dp/B01MUAEI7J/