so I have given my old phone to my mom and have forgotten to remove the my gmail account. I want to delete the phone from the "approved" list but I cannot find a way to delete it.
I've looked at various guides and the options/settings they are talking about are not available anymore.
I am looking at this page: https://myaccount.google.com/device-activity
I'm trying to avoid changing my password since that means I need to change that on all my devices.