Instructions for MAUI android app don't work

[ryanlangton]

This issue is for a: (mark with an x)

- [ ] bug report -> please search issues before submitting
- [ ] feature request
- [x] documentation issue or request
- [ ] regression (a behavior that used to work and stopped in a new release)

Minimal steps to reproduce

Followed the instructions on the readme multiple times for a MAUI app.
1-Authentication/2-sign-in-maui/README.md

Any log messages given by the failure

invalid_request: The provided value for the input parameter 'redirect_uri' is not valid. The expected value is a URI which matches a redirect URI registered for this client application.

Expected/desired behavior

Logs in and shows the token information screen.

OS and Version?

Google Pixel 8 (Android 15.0 - API 35)

Versions

NA

Mention any other details that might be useful

MainActivity
PlatformConfig.Instance.RedirectUri = $"msal{PublicClientSingleton.Instance.MSALClientHelper.AzureAdConfig.ClientId}://auth";

I have verified this matches what's in Microsoft Azure -> Home -> Azure AD B2C | App registrations -> My app