There are 2 ways to turn off Find My
Turn off it on iCloud
Log in to https://www.icloud.com/ with your iCloud account that is used to log in to the MacBook.
Go to https://www.icloud.com/find/ to Find My
Click on All Devices on Top and then click the offline device to remove it from your account. Note, you can only remove the offline devices. If your device is online, turn off the Macbook first and wait for a minute before it shows offline.
Turn off it on the computer’s iCloud > Find My Mac
Choose Apple menu > System Settings.
Click Apple ID.
Click iCloud in the sidebar.
Select the Find My Mac checkbox on the right.
Turn off ‘Find My Mac’, then enter your Apple ID password when prompted.
