A:Answer My guess is that wouldn’t work. The USB 4 port is not full Thunderbolt 4 (only Intel and Apple have licensed Thunderbolt) - even tho USB 4 utilizes TB3 transport. I bet you could attach each of the Dells directly separately though, assuming they have suitable connectors (say one via HDMI, one via Display port through USB 4). It’s separate questions whether works with closed lid, and what GPU drives what. Ideally iGPU drives 16” screen and dGPU drives both Dells, but don’t know if that is configurable. If you need to fork other USB port, probably you need a non Thunderbolt dock in any event.
