There are two ways to configure the SSO login method as the default option when accessing your Aura instance through the browser. Please note, before proceeding, you will need to add a new Redirect URI in your Identity Provider (IDP) configuration:

https://browser.neo4j.io/?idp_id=<idp-id>&auth_flow_step=redirect_uri

Replace <idp-id> with the ID of the Identity Provider configured in your Aura instance. Once this is done, you can choose between the following options:

1. Set SSO as the Default Login Option
   Use the following URL to automatically select SSO as the default login method when accessing your instance:

   https://browser.neo4j.io/?preselectAuthMethod=SSO&connectURL=neo4j://<dbid>.databases.neo4j.io

2. Automatic SSO Login
   Use this URL to log in directly via SSO, bypassing the need to click the login button:

   https://browser.neo4j.io/?sso_redirect=<idp-id>&connectURL=neo4j://<dbid>.databases.neo4j.io

For more information about available browser URL parameters, please refer to the documentation:
Neo4j Browser Manual - URL Parameters