This is a chronic pet peeve and not specific to Finale 26.3 (note that you can't copy the full version number from the About window, so I'm not going to add the remaining version details):

After setting up a new document in the past and then going through a fair amount of effort to get the fonts, tuplet preferences, etc all set, that all goes to waste when creating a new document. Yes, one can load a library from a former document and I've certainly done that. But that doesn't include all the customizations of fonts, etc. 

Finale's online manual indicates a lot of variety here, and the distinctions and limitations between Templates, Libraries and Document Styles is a bit confusing but whatever. So I thought it would be good to take my last piece and save it as a Template. Problem is, despite what the online manual says, one can't (at least on a Mac) save a file as anything but a Finale file in the Open/Save dialogue. There is no option under Save As to save as a Finale Template File (*.FTMX). So that avenue isn't an option.

I'm hoping that the Document Styles approach will work, but it would at least be better if the Setup Wizard allowed one to customize text fonts, etc during the setup process, rather than having to do so after setup. I'm not talking about the music font (that is in the setup wizard, with only two options, but that's better than none I suppose), but fonts for title text, staff names etc. Changes in the Document Options does not apply to fonts that are already used, and so one then has to go through the process of changing full staff name fonts, abbreviated staff name fonts, groups, measure numbers, etc. 

So after all these years (I've been a Finale user since 1991 or so), can't we finally have some basic conveniences like setting fonts that stick for new documents? Word has had this feature since the 1980's. At the very least, a better way to save customizations from previous documents would be desirable, and failing that, incorporating these into the Setup Wizard for new documents. I spend too much time getting a new document started; none of that happens when creating any Word document for example, and it's frustrating that this is not the case with Finale. In late 2020. The fact that we're still doing many things in Finale the same clunky way we've done it for decades is maddening (don't get me started on the fact that there are at least three different page setups, none of which do the same things; I've gotten nowhere with that argument)