How to add custom preview urls for some pages?

I use WordPress as a headless CMS through its API.

When clicking on Preview it takes me to domain/slug. This works for most of the pages, however there are some pages that are under sub-path domain/sub-path/slug.

How to enable the Preview button to take the user to the correct url? I use ACF, could that be utilised somehow to provide optional value for ‘sub-path’?