By design, Google defaults to the first account you logged in with. So, the solution is to set a default Gmail or Google account:
- Go to any Google site sign-in page in a non-incognito window.
- Log out of all your Google accounts. Select your profile picture on the top-right and click Sign out from the menu.
- Go to gmail.com and sign in with the account you want to set as the default account. Remember, the first account you log in to becomes the default always. Test this by signing into any other Google service (like Google Drive) and see for yourself.
- After signing in to your default account, you can sign in to any other Google account and switch between them.
- Select your profile image from the top-right. On the menu, choose Add account. Use your credentials to sign in to the account you want to use.
