1. Download and add the uBlock Origin extension to your preferred browser
2. Click the uBlock Origin icon in your browser’s toolbar and click the three-gear icon in the bottom-right corner of the pop-up to open the Dashboard
3. Go to the My Filters tab, paste the following line, and hit Apply Changes:
||accounts.google.com/gsi/*$xhr,script,3p
Source: https://techpp.com/2024/05/28/disable-sign-in-with-google-on-websites/
Disable the Sign-In with Google Prompts Using uBlock Origin