Bug System.Environment.GetEnvironmentVariables() always returns null on Unity 2019 versions

TL;DR 'System.Environment.GetEnvironmentVariables()' always returns null in 2019 releases (running on Ubuntu 16.04). I got System.Environment.GetEnvironmentVariables() to work in 2018 versions by opening up Unity Hub from the command-line. 2019 seems to open the editor differently (effectively killing the Hub parent process) which means that strategy doesn't work in any more. HELP!

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I discovered that in 2018 versions of the Unity Linux editor (running on Ubuntu 16.04) I could only get System.Environment.GetEnvironmentVariable() to return anything if I launched the editor from the command-line.

I.e. I would run the following command from a terminal:
cd ~/Unity/Hub/Editor/2018.3.12f1/Editor && ./Unity

Forgive the crudeness, but I reasoned this worked because this allowed the editor process to be attached to that terminal's environment, which contained the correct environment variables. This gave the added benefit that also any process launched from the editor (using System.Diagnostics.ProcessStartInfo and System.Diagnostics.Process.Start()) would also have access to the correct environment variables.

That explanation seems valid with what the docs on GetEnvironmentVariable() say:
"On MacOS and Linux, the GetEnvironmentVariables method retrieves the name and value of all environment variables that are inherited from the parent process that launched the dotnet process or that are defined within the scope of the dotnet process itself."

Now it seems that launching 2019 versions of the editor from the command line works differently. It looks like now once I click on a project to open it, the process I initiated from the command-line to open the Hub is terminated. The terminal outputs:

"Parent process [24230] was terminated"

Then once the editor launches (in some process invisible to me), my System.Environment.GetEnvironmentVariable() calls return nothing. Are there any workarounds? Is this a bug that can be fixed?

 

when fix？

 

Does it fixed?

 

Fixy?