Most Microsoft apps use the same font by default. However, if you want to always use a different font in one or all of your desktop 365 apps, you can change the default manually.

Word font keeps changing? If Word does not remember preferred font settings, then you need to change default font or recreate Normal.dotm which retails defulat settings.

I’ve always favored Microsoft’s default Word font—much more so than Times New Roman, at least, which Microsoft replaced with Calibri way back in Office 2007.

Microsoft has changed the default font in Word with one of the latest updates. Instead of Calibri for normal text and Calibri Light for headings, the fonts Aptos and Aptos Display are now preset.