How to log out of all devices on Google (-changing password/log out all – is not disabling gmail on android phone

I want to log out of all devices on Google. I went to a security page, changed my password, and selected log out of all devices. I pick up my phone, and I can read the e-mail that my password was changed. I can also send new emails. So I my phone was not logged out!!!!!!!!!!!!!

I think someone is logged into my gmail from another phone, and I want it logged out.

How do I do that?

The “Details” button on the bottom of the gmail page shows connections from two different phones. I have one. As opposed to the Windows sessions, there is no clickable link associated with those logins. When I click on “security checkup” on that page, it takes me to a page that only deals with the PC web sessions.