Clark,
I set the Git ssh executable in SE Options as you said above (see first image), and I still get the timeout (see second image).
Previously (SE v28 and Win 10), it would ask me the "Yes/No SSH new key" question and then it would prompt me for the 2FA 6-digit key and the it would connect.
Also:
I tried this using the SE Terminal window using both the Win 11 ssh and the Git ssh, and in each case there appears no response until I punch in the 2FA 6-digit key and then in both cases the terminal window connects.