Hello,
Sorry to hear you’re experiencing issues. Could you please let me know which Stardock software you’re referring to — WindowBlinds or something else?

Thank you,
Basj,
Stardock Community Assistant.

From what I know, some Windowblinds theme/skin do change some system fonts, but, most of Windows 11 system fonts can not be change by Windowblinds. For example, Windows 11 context menu fonts no longer changeable.

Thank you,

Basj,
Stardock Community Assistant

You posed an interesting question, so I did a bit of poking about on the net and found this:

https://www.lifewire.com/change-font-windows-11-6827640

Indeed, what basj wrote is true. In that article the author wrote:

"However, not all parts of Windows will adopt the new font. Areas like Settings, Start menu, Clock, Quick Settings, and many others remain unchanged."