I know this is Crimson Wizard's favorite topic, so I just had to bring it up again.

In v3.4.1 I don't see the x2, x3, x4... options under windowed scale when I run winsetup. The only ones are "None (original game size)", "Max round multiplier", "Fill whole screen", and "Stretch, preserving aspect ratio" – IOW no scaling and three very slightly different variations on scale to full screen.
This is particularly a problem for me since I run AGS in a virtual machine on a high-resolution screen (2880x1800). This means that without scaling the window is tiny, but scaling e.g. a 320x200 game with max round multiplier ends up being x9, and the VM can't handle that (I'm not sure exactly where the the problem lies, but it freezes the VM).
However, even if this was not the case, I would want to be able to set intermediate scaling options. If I'm playing in Windowed mode I probably have other windows open, and I don't necessarily want thhe game window to fill most/all of my screen.
I want to be able to run games scaled bigger than the original resolution, but not necessarily to cover as much of the screen as mathematically possible. I want x2, x3, etc. back!