How to Achieve Equal Column Heights

Turn on Background in Columns

When you turn on the Background in each column, your columns will have equal heights.

Then you can use the Align Last Block to Bottom setting to align the last blocks within each column on the same line at the bottom.

Add auto to Top Margin

If the Background is turned off, you can achieve equal heights or close to it by adding auto to the top margin in blocks that you want to align to the bottom.