Wanted to add a little more detail and make the link accessible [0] which also shows the output from --extendedDiagnostics. The Panel is the window where the output from a build is shown [1]. It is displayed automatically on build. It's visibility can be toggled with CTRL+J (I'm on Linux) or from View > Appearance > Panel. When it's hidden the build is x5 faster with no other changes.
Wondering if anyone else can confirm faster builds with it hidden?