Trouble using standard Windows OAuth flow on L3 server

[sebbacon]

When @AnnaB45 git clones an https git URL on her laptop, it works, using the standard Github web-based oauth (note tail-end of her git config there, in case useful):

When she does the same thing on the L3 server, from the /e/anna_r directory, she gets a GitHub login dialog, it then fails (not clear exactly how), falls back to an OpenSSH login dialog, and then fails (per this SO post).

Here's her git config on the L3 server:

As a workaround she is currently logging in with a PAT

[sebbacon]

As a clue, git credential-manager version tells me we're using https://github.com/microsoft/Git-Credential-Manager-for-Windows/releases/tag/1.20.0

Some other possibly-useful debugging info here

[madwort]

hmmm, now unmaintained: microsoft/Git-Credential-Manager-for-Windows#918