Settings › users. Sessions is on every row, including yours. Company admin or owner.
Sessions is on each row. The number beside it is how many browsers are signed in right now. Alex is the company admin using this console. Pat is an operator. Invite a teammate is how a row gets here.
The list is device, address, when it started, and when it was last seen. Revoke asks you to confirm, then signs that browser out. Other sessions for the same person stay signed in. This is Alex's own browser. The same button on Pat's row lists Pat's browsers. This shot stops before revoke, so this browser stays signed in.
Changing the password signs out every other browser at once. That is Change your password. Disabling the person signs all of them out. That is Disable a person's sign-in. Signing this browser out from the account card is Sign out of this browser.