How to Find All Accounts Linked to My Email Address Using a web browser
Step 1. Click on the link https://myaccount.google.com/ and sign in using your Google account. You will be landed on the Home page.
Step 2. Select the ‘Security’ tab from the left and scroll down. A screen like below appears.
Step 3. Here, under ‘Third-party apps with account access’, you can see all the third-party apps that are linked to your google account.
Step 4. Click on ‘Manage third-party access’ and the below screen appears.
Step 5. Here, you can get the list of all the third-party apps with account access and the apps that you sign in using google account.
Step 6. Also, you can directly get this page using https://myaccount.google.com/u/1/permissions?pageId=none
How to Find All Accounts Linked to My Email Address Using mobile:
Step 1. Click on the ‘Settings’ icon from your menu. A screen like below appears.
Step 2. Select ‘Google’ under ‘System and Device’ section. It redirects to the Google account screen like below.
Step 3. Select ‘Apps connected’ option from the ‘Services’ section. This lands you in the list of apps that are connected to your Google account like below.