Hello.
In the 7th version, a completely different mechanism for building the appearance of forms that the user can work with is planned. This will allow to present the data of each record not only using the layout builder with object data, but also in html forms.
We can say that the 6th version is a special case of one of the possible options for representing the 7th.
In version 6, you can set View: window, window on top in HTML form properties to make this form easier to use.