The concept behind Single Sign-On (SSO) is easy: sign in to one system, and then be automatically signed into other applications you need.

• Set Up Salesforce With Google Single Sign-On (SSO) – SalesforceBen Article.
• Salesforce cloud application – Google Workspace Admin Help – Google Doc
• Set Up Single Sign-On for Your Internal Salesforce Users – Trailhead
• User Provisioning – Video