To create a form in column format follow the step-by-step below:
In the form builder, click on 'Layout' and then on 'Container';
Add the field you want inside the Container;
Add a new Container and insert the desired field into it once more;
Add another Container and leave it empty, then drag the others that were created into it;
Drag the two Containers into the empty Container.
Then click on the Container main (The one that has the other two inside) and click on Arrangement and select Columns';