How to change the console window title of a dotnet application run by powershell?

I'm launching multiple dotnet run commands using a Powershell script.

$projectsRootDirectory = "$PSScriptRoot\.."

Start-Process -FilePath 'dotnet' `
              -WorkingDirectory "$projectsRootDirectory\SomeProjectFolder" `
              -ArgumentList 'run --launch-profile My.Profile --debug'

When I launch 6 of them simultaneously I have a problem distinguishing which one is which.

From questions like this one, I learned it is possible with the -c parameter:

Start-Process powershell '-c "$host.UI.RawUI.WindowTitle = \"Speed Test\"; .\SpeedTest.ps1"'

But as far as I understand, the -c parameter is for the powershell command. Can I achieve the same with dotnet run command?

Solution

In your case, the simplest solution is to call cmd.exe's CLI in order to call its internal start command, which is comparable to Start-Process while allowing you to set the console window title directly:

$projectsRootDirectory = "$PSScriptRoot\.."

cmd /c @"
start /d "$projectsRootDirectory\SomeProjectFolder" "Speed Test" dotnet run --launch-profile My.Profile --debug
"@

Note the use of a here-string to make use of embedded quoting easier.
Following any of it owns options - such as /d to set the working directory for the new process - start interprets an immediately following "..."-enclosed argument as the title for the new console window with all remaining arguments constituting the executable to start plus any arguments.
- Note that options such as /d must come before a window title / the executable plus arguments to start.
Start-Process, by contrast, does not support setting a console window title for applications, so the only way to do that is to have the newly launched process itself change the title; if that process is also a shell (cmd.exe or the PowerShell CLI, powershell.exe / pwsh.exe), you can use the latter's features to do that (title Speed Tests or [Console]::Title = 'Speed Test').
While you could use this technique to indirectly launch the target executable, the above technique is simpler.