You can share your own location with other people, but unlike in the iPhone and iPad versions of the app, you can’t share your location from your Mac. When you’re viewing your friends’ locations, Find My shows you where they (or the iDevice they share their location from) were and when their device was seen last. Like its iPad and iPhone counterpart, the Mac Find My app combines the person-tracking features of the old Find My Friends app with the device-tracking features of the Find My iPhone app. Find My is one of the Mac’s new first-party Catalyst apps, and it’s a lot like the version of the same app that comes in iPadOS 13.
