We believe that Auto Layout is not mandatory for every project. It should be used purposefully. When in exploration mode, you certainly need frames that can be easily moved around. In another case, where you aim to create a template for a repeatable use case, Auto Layout will be beneficial.
By default, our frames are not set to Auto Layout, but they are prepared for conversion to Auto Layout. You can simply activate it as needed.
Frame (Default): Standard setting without auto layout.
Auto Layout: Option to enable the auto layout feature.
How
Open Layer pane on the left. Select Auto layout layer.
Activate the Auto layout layer
And do it for all the Auto layout layers.