Google Sign-In on Marketing Pages
Guests sign in with Google One Tap on marketing pages; returning users skip extra account prompts and land on the app home.
Public marketing HTML can show Google One Tap for guests. After an account is chosen, the email from the credential is passed as a login hint so the authorization step does not ask again. Signed-in users who hit the guest welcome page go to the catalog home instead. A Google Workspace sign-in also stores Drive and Calendar access, so those tools work without a second connect step.