Depending the power supply comes with 2 or 3 display ports 1.4, Spec sheet doesn't specify type C port has DP1.4 support or not.  I don't see why not, go ahead  
I'm wondering about connecting the P3421W curved USB-C monitor to an OptiPlex 7000 MFF, can't add a different graphics card to the micro so will the built-in video support WQHD. In a chat with Dell they said it would but only one of the curved monitors would work which is fine, there will only be one. I'd like a second opinion. Better to connect with USB-C than DisplayPort? the Optiplex is Windows 11. Thanks
P3421W, with Optiplex 7000 MFF?