For workflows with long button text, here is a trick to make them appear nicely:

1. Switch to Vertical style.

In the Settings tool, under the Style tab, you can choose between Horizontal or Vertical style.  Vertical style works better for longer button text.

If you do not wish to switch to Panels style, you can arrange buttons in rows. This is done on individual nodes like this:

Two buttons per row would look like this: