Hi @mdav1.diap,
I do not think think the exact flow can be accomplished here to prompt MFA before changing password, BUT you could look at enforcing MFA after the password has been changed using Actions.
As an example, using the Post Change Password Flow you could add metadata to the user to flag that this change has happened, then during the next login you could use another action to check that flag and if true prompt for MFA during login flow.
Kind Regards,
Nathan