Thx Rboerner, I will switch to a USB-C hub like this one:
https://www.caldigit.com/thunderbolt-station-4/
I hope I do not need any other cables other than what I am using to connect to the MB Pro mentioned in this post. Both monitors work when I plug them in directly using USB c to USBC for the Studio Display and an Apple adapter for the Cinama Disply to USB C.
I need the Hub because I frequently have to swap out my main device with other Mac's from work.