The conditional logic of single-step forms is a little different from multi-step logic.
In single-step forms, all questions are visible on the same page. Even if you use the Page Break field in your single-step form, your form follows the default functionalities of the single-step forms.
So when using conditional logic, you can show and hide questions based on the user's answers.
For example, you can create multiple conditional rules to show a specific question if the user selects an option and hide it if the user unchecks it.