There may be some instances where you want to sign out of all your Google accounts and remove them from a single space, for example, if you want to change the primary Google account associated with that space you'll need to do this. Here's how to do this...
- First, in Gmail or any Google site, click on your account icon in the top-right of the tab. From here, pick "Sign out of all accounts"
2. Once signed out, your accounts will still be listed. To remove them click on "Remove an account"
3. Use the red removal button next to the account and repeat this process until no more accounts are listed
Once you've removed all your accounts, you'll be prompted to sign in afresh.