This option is very nice, happy that it exists:

It seems a new column is started only when the preceding column has reached 6 tracks. That's nice too for a nice layout.
When the option "restrict number of columns" is set to 2 or 3, I found one album for which the layout seems not to work completely as it should. The album has 6 tracks (so they fit in only one column) and the titles are quite long. There are plenty of space to display the titles entirely, but yet they are truncated:

When the option "restrict number of columns" is unchecked or set to 1, the titles are displayed entirely:

When the number of columns is the same from one state of the option to another, the titles should be displayed the same. Here of course I would like the titles not to be truncated...
PS: that would be nice to have the same option in the Album and Tracks view. Currently there is the option "Display tracks as a single column list", which is not as flexible of course (unability to select precisely 2 or 3 columns)