https://www.amazon.com/gp/aw/d/B08FY28Z8F

I have this one and the one the nexdock came with

I have the same ROG Strix X570-E Gaming board. I also went from a Rift S to the Meta Pro. With the Rift S, I never had to worry about charging the headset, since it was always connected to the PC.

One of the problems is that the motherboard isn't doing Power Delivery through the USB-C ports which meant that the battery was never charging while playing, like I was used to with the Rift S.

I bought two things and now it works great. My headset battery is at 100% the entire time I'm using it and I'm linked by cable to play any of the PC VR games.

First, a high end 10-foot USB-C cable with all the needed bells and whistles. (Cyber Monday sale now for $16.79)
https://www.amazon.com/dp/B08FY28Z8F?psc=1&ref=ppx_yo2ov_dt_b_product_details

Second, a USB-C card that supports 30W Power Delivery and is USB 3.2 Gen 2 with 20Gigs of bandwidth for the video. ($79.99)
https://www.amazon.com/dp/B0BCFN6HV2?psc=1&ref=ppx_yo2ov_dt_b_product_details

The bandwidth is shared across all of the card's USB ports. So to make sure it works flawlessly, just don't plug in any additional USB devices other than the Meta Pro.