nostr:npub1ht0rq2ej339cv0nz4m260llgdq8mz05fwpz4zjc8s7lmtduzq8hq60dyc3 Windows 11 already lets you change fonts from the Personalization tab. You must be on Windows 10, which lacks such an option.
If so, please know you don't need any additional software.
You just need a .reg file extension.
Here's how to do it:
https://www.windowscentral.com/how-change-default-system-font-windows-10