Connected App Issue - Google Ads

Hey @* Salesforce Developers * @* Salesforce Administrators * @* Sales Cloud - Best Practices * @* Service Cloud *   I’m hitting a roadblock with our Google Ads integration and could use some collective brainpower. Despite installing the Connected App and configuring Admin-approved permissions, OAuth attempts keep generating new, uninstalled apps instead of using the existing one. 

Has anyone successfully navigated this since the September 2025 updates? Specifically:

• Why might OAuth bypass the installed Connected App and instead create a new uninstalled app?
• Are there new policy requirements for Google Data Manager direct connections? 

Thanks in advance! 🙏