I was planning to purchase a TB15 dock until I read about all the problems. Sounds like it's been taken off the market. I purchased and returned a WD15 when I realized it do not have adequate wattage to charge the XPS 15.
As such I am looking for a list of Dell or 3rd party Thunderbolt or USB-C docks that are known to work and provide at least 2 USB-3 ports, HDMI 4K@60Hz (could like with 30Hz) port, Display Port, Headphones and power adequate to charge my XPS 15 (9550).
Does such a list exist?
Check HP, Plugable.
I recall both TB15 and WD15 supply 100W (less than the 130W) via USB-C, regardless of their power adapter power.
Mind there seem to be Dell-specific issues that are likely to show up with 3rd-party docks too. Make sure the shop has a generous return policy if you decide to try.
Mind the HP TB3 dock seems to have miserable reviews too 😉
It seems like getting a workable TB3 dock has been difficult. Plugable delayed the release of one of theirs because it would not be compatible with the new Mac Books.