Depending on the type of change made and where that information is stored, you may need to push the database or make those changes manually on the live site. For instance, if you added or edited CSS in a block or widget in the WordPress dashboard, that would probably be saved to the database.
If you make changes to something in the WordPress dashboard, with the exception of changes made with the Theme Editor (Appearance > Theme Editor), that information is usually stored in the database.
Note: Any changes to the live site’s database since the staging site was created will be lost, including but not limited to: comments, new content, purchases on ecommerce sites, sign-ups on membership sites, and forum posts. In this case, we recommend making the same changes manually on the live site rather than pushing the database.