[2020] Something went wrong while updating the launcher please contact support

Let's try forcing an update of the launcher.

Download the installer package for Windows: https://forumcontent.paradoxplaza.com/emailsignatures/2020.14-win-prod.zip

Unpack the file you just downloaded and place the three files in the Steam folder for the game you're having issues with. If asked if you want to replace already existing files click "yes" - that's a sign you are in the right place!

Then please repeat the launcher reinstall procedure from before.

Good luck with that!  

TheMoe said: Outside of that, I'm back to square one.

Actually your launcher is up to date now, on 2020.14 , so that update error is bogus. I think you can ignore it from here on.