After battling the normal .NET rubbish I finally got the launcher to run.
If I try and run Horizons I get to the generating planet bit ( after the shaders ) then it maxes out my laptop for 5-10mins until I reboot ( because machine is completely unresponsive, including ctrl-alt-f1 for console or ctrl-alt-esc to kill the program or ctrl-alt-del ).
If I try and run non-Horizons I get the video and music but then it crashes, sometimes it doesn't crash and I get a little further, even to the menu, but it's unresponsive.
I did the VC2017 update.
and I'm set to Windows 7.
kubuntu 18.04
wine 4.0rc1
nvidia 390.87 ( GTX 1050TI - it's a gaming laptop )
I'll keep fighting with it tomorrow for a bit - it's 2am now
Not helped by the fact it looks like the servers are still having issues, not that I've got close to actually connecting to one yet.
You need two things, first a driver version that is 396 or above but avoid the latest 415 driver as it has a nasty terrain bug.
Second is if you haven't already you need to install dxvk, which can be easily done by winetricks.