How to sign out of all devices

Ho

w do I sign out of all devices

I don’t know if this is the easiest, but go to https://app.plex.tv/desktop/#!/settings/devices/all

and X them all.

Either the above,
OR change your password here https://app.plex.tv/desktop/#!/settings/account and tick the checkbox “Sign out connected devices after password change”.
This will not only sign out all clients, but all servers as well. Requiring you to re-claim them afterwards. Just to be aware.