Does this method work on 'fully' copying a SharePoint list from one site to another? --the list items, all the columns, the column formatting, and any attachments on the list items.
Here is an option for sites not based off of a Modern Site template only. Go to the site Pages Library and then Library Settings -> Advanced Settings -> List Experience and choose the Classic View-> Save Changes. Now you can refresh your page and use the Copy option to copy to a different location / site. As with all things Microsoft there will be some requirements if you move a site page which uses content from the original site that a person may not have access to in the new location. Just wanted to share.
This method is not working for me. I do exactly as you explain, but I get an error saying 'Invalid number value: A number field contains invalid data. '
Sorry to ask, but what is the difference between this method and simply copy the page (under new, copy of this page). Also, how to copy web apps from page to other page?
When I do it, it only copies the home of the page I want to copy to again. So I just have the home page twice instead of the home page from another site that I wanted to have. Do you have any idea why this could be the case?