Hi JeremiahGilesEsq
welcome to the Apple (user-to-user) Community!
Re: "Call Forwarding Shortcut for iPhone?"
"... an app or any software that would allow me to more easily access the call forwarding memo?"
Am no expert in this area, yet your request certainly deserves some response.
Just wondering if Apple Support's online article (link below) for iOS18 may be at all helpful:
(Eg: article seems to suggest contacting your carrier in some situations):
Set up call forwarding on iPhone - Apple Support
Sorry I don't know for sure about a suitable shortcut, app, or software:
For tips: About the Accessibility Shortcut for iPhone, iPad, and iPod touch - Apple Support
Also: wondering if there may be a way to ask Siri to forward a call ?
Eg: You can: Answer or decline incoming calls on iPhone - Apple Support
or
See how to: Use Vocal Shortcuts on iPhone - Apple Support
Else:
If no satisfactory answers from the community appear in replies here
You may want to contact Apple's Accessibility Support Team for help with the call forwarding issue:
How to contact Apple for accessibility support - Apple Support
or
If you'd like to send feedback (or a feature request) about Call Forwarding:
To provide feedback about an accessibility feature on an Apple product,
you can email the Accessibility team: accessibility@apple.com.
All the best :-)