To sign out of iCloud remotely from a device, follow these steps:
Go to iCloud.com: Open a browser and sign in to iCloud.com using your Apple ID.
Open Find My iPhone: Once logged in, click on Find iPhone.
Select Device: At the top, click All Devices and select the device you want to sign out from.
Erase Device: To remotely sign out and remove iCloud, click Erase [Device]. This will erase the device, and once it's erased, it will be removed from your iCloud account.
After completing these steps, the device will be signed out of your iCloud account.
Go to iCloud.com: Open a browser and sign in to iCloud.com using your Apple ID.
Open Find My iPhone: Once logged in, click on Find iPhone.
Select Device: At the top, click All Devices and select the device you want to sign out from.
Erase Device: To remotely sign out and remove iCloud, click Erase [Device]. This will erase the device, and once it's erased, it will be removed from your iCloud account.
After completing these steps, the device will be signed out of your iCloud account.