Hello, I am considering to buy a TS3+ Thunderbolt 3 dock. I plan to use it to drive an external 4K display at 60Hz (via a HDMI 2.0 port at the back of the 4K TV), usb devices and a high speed SSD. In a few months, I may add an eGPU. It has been to my attention that although some Windows laptops have multiple Thunderbolt 3 / USB-C ports, they share bandwidth. Using one will lower the bandwidth of the others. This is certainly a turn off. Do MBP 2017 (and up-coming 2018) 13" and 15" models have such limitation?