The power brick for the newest MacBook Pro delivers 96Ws and it will use all of it at high workloads. I've seen mine drain the battery (slowly) when plugged into the 87W power brick from the last-generation MBPs.

I would've compromised for this dock if it were cheaper. A lot cheaper.

I'd pay $300 for a dock with 100W PD, 4k60 and gigabit. But this ain't it.