Does MacBook Pro 13" 2017 and 2018 with Touch Bar have the same bandwidth on all 4 ports? I learnt from this article:

https://www.macrumors.com/2016/10/28/macbook-pro-tb3-reduced-pci-express-bandwidth/

...that the right ports on MacBook Pro 13" 2016 with Touchbar deliver reduced throughput for Thunderbolt devices.

I wonder if this is also the case with the 2017 and 2018 MacBook Pros.
Check this information I found on an article:


  "The 13-inch MacBook Pro (2017) without Touch bar has 2x full-speed
  Thunderbolt 3 ports / USB-C ports. The 13-inch MacBook Pro (2018) with
  Touch ID has 4x Thunderbolt 3 / USB-C ports and, with the 2018 model,
  all four of those ports are now full bandwidth."


I hope this answers your question.