I spent 2025 creating almost 100 N8N workflows for all kinds of use cases and what I see now at least for example with Google authentication tokens (Google Drive, Google Sheets, etc.) is that after 2 weeks or something, this is not working anymore and I have to manually authenticate these workflows again.
@jordahn If you are talking of the OAuth of the google type, the only thing to be done is to move the applications to production in the google cloud console so that the refresh tokens never expire and thus the use of the earlier information without re-authentication becomes possible.