Hi y'all, it looks like a lot of great info is being shared on this thread; hoping that this question is helpful for others as well.
Just tried hooking up the Series X to the V6A and my TV (Samsung QN65Q6FNAF) this morning, but wasn't able to get 4K working. I removed the V6A from the equation (i.e., Xbox connected directly to the TV) and that allowed me to get 4K coming out of the Series X. This leads me to believe I haven't found the right settings with the V6A and the TV. Anyone else running into something similar? I remember having to do some finagling to get the Nintendo Switch to work.
Thanks in advance!
Edit: Should add, Series X is connected to V6A with cable that comes in the box; V6A is connected to the TV with an HDMI cable I already had. 4K worked when Series X was connected directly to TV with this cable I already had.