I prompted ChatGPT with this:
How do I put a fade out on the master track in bitwig studio?
The response:
To put a fade-out effect on the master track in Bitwig Studio, you can follow these steps:
Click on the "Master" track in the mixer to select it.
Click on the "FX" button on the Master track header to open the FX panel.
In the FX panel, click on the "+" icon to add a new effect.
Select the "Volume Shaper" effect from the list of available effects.
Click and drag the Volume Shaper effect onto the Master track's effect chain.
In the Volume Shaper effect's window, click on the "Draw" button to enter Draw Mode.
Use the Draw tool to draw a fade-out curve at the end of the song.
Adjust the curve as needed to achieve the desired fade-out effect.
Exit Draw Mode and close the Volume Shaper effect's window.
You can now play your project and hear the fade-out effect on the Master track.
Plausible! But Bitwig does not have a Volume Shaper effect. There's a third-party VST named that, though. Before I was thinking that it was easy to check ChatGPT's facts so it was worth using, but it is actually a bit of a hassle.