I would probably find the new default framework and other file options useful from time to time, but 9 times out of 10, if I create a new file in a project, I’ll duplicate an existing one. Not only will it have the framework options but will probably have some include files, and perhaps other common features (eg a cookie consent popup or a modal etc).
I think it would be useful to have an additional/alternative option in the frameworks panel - to select a file to be used as a default template. Or just as good perhaps - an option to right-click a file and choose ‘duplicate’. I know this can be done in Wappler already, but it’s quite a few clicks. I usually open Windows File Explorer and duplicate the file there. (Quickly duplicating a file - whether to use as a new file, or for testing something - is one of the things in Dreamweaver I still miss.)