No. Contact details updated in your portal will not update any of your applications to eliminate any confusion about how employers are managing their data.
You may be thinking, "Then what's the point of entering my contact details here?"
In the candidate portal, you can take Toggl Hire tests to display your skills to recruiters and they will be able to scout you using Toggl Hire. The contact information that they will have for you is what's displayed in your profile so it's a good idea to keep your contact details up to date.
Help us improve the new Candidate Portal with your feedback. We'd love to hear it.