If anyone is using stock Core Zorin 16.2, could you please run System Monitor and scroll down the running services and check if zeitgeist is present - if not, all well and good - suspect it may get installed with Pantheon-Tweaks if you are wanting the elementary OS style desktop.
I mention this as on purging zeitgeist it also wanted to purge a package called:
switchboard-plug-security-privacy
which gets installed with Pantheon Tweaks!
Why you should be worried about zeitgeist (it used to be in much earlier versions of Zorin/Ubuntu:
When I copied the purge commands as stated in the above article, it reported a 'glob' error so I just used:
UNIT LOAD ACTIVE SUB DESCRIPTION
accounts-daemon.service loaded active running Accounts Service
acpid.service loaded active running ACPI event daemon
alsa-restore.service loaded active exited Save/Restore Sound Card State
apparmor.service loaded active exited Load AppArmor profiles
binfmt-support.service loaded active exited Enable support for additional executable binary formats
bluetooth.service loaded active running Bluetooth service
clean-mount-point@media-owner-Archive.service loaded active exited Clean the /media/owner/Archive mount point
clean-mount-point@media-owner-Backup.service loaded active exited Clean the /media/owner/Backup mount point
clean-mount-point@media-owner-OldRB.service loaded active exited Clean the /media/owner/OldRB mount point
clean-mount-point@media-owner-Storage.service loaded active exited Clean the /media/owner/Storage mount point
clean-mount-point@media-owner-writable.service loaded active exited Clean the /media/owner/writable mount point
clean-mount-point@media-owner-Zorin\x20OS\x2016.2\x20Core\x2064bit.service loaded active exited Clean the /media/owner/Zorin OS 16.2 Core 64bit mount point
console-setup.service loaded active exited Set console font and keymap
cpufrequtils.service loaded active exited LSB: set CPUFreq kernel parameters
cron.service loaded active running Regular background program processing daemon
cups-browsed.service loaded active running Make remote CUPS printers available locally
cups.service loaded active running CUPS Scheduler
dbus.service loaded active running D-Bus System Message Bus
drive-readahead.service loaded active exited drive-readahead.service
driveled-remap.service loaded active exited driveled-remap.service
gdm.service loaded active running GNOME Display Manager
irqbalance.service loaded active running irqbalance daemon
keyboard-setup.service loaded active exited Set the console keyboard layout
kmod-static-nodes.service loaded active exited Create list of static device nodes for the current kernel
lm-sensors.service loaded active exited Initialize hardware monitoring sensors
loadcpufreq.service loaded active exited LSB: Load kernel modules needed to enable cpufreq scaling
NetworkManager.service loaded active running Network Manager
nohang-desktop.service loaded active running Sophisticated low memory handler
polkit.service loaded active running Authorization Manager
rsyslog.service loaded active running System Logging Service
rtkit-daemon.service loaded active running RealtimeKit Scheduling Policy Service
setvtrgb.service loaded active exited Set console scheme
systemd-backlight@backlight:amdgpu_bl0.service loaded active exited Load/Save Screen Backlight Brightness of backlight:amdgpu_bl0
systemd-fsck@dev-disk-by\x2duuid-D7D8\x2d5AED.service loaded active exited File System Check on /dev/disk/by-uuid/D7D8-5AED
systemd-journal-flush.service loaded active exited Flush Journal to Persistent Storage
systemd-journald.service loaded active running Journal Service
systemd-logind.service loaded active running Login Service
systemd-modules-load.service loaded active exited Load Kernel Modules
systemd-networkd.service loaded active running Network Service
systemd-random-seed.service loaded active exited Load/Save Random Seed
systemd-remount-fs.service loaded active exited Remount Root and Kernel File Systems
systemd-resolved.service loaded active running Network Name Resolution
systemd-sysctl.service loaded active exited Apply Kernel Variables
systemd-sysusers.service loaded active exited Create System Users
systemd-timesyncd.service loaded active running Network Time Synchronization
systemd-tmpfiles-setup-dev.service loaded active exited Create Static Device Nodes in /dev
systemd-tmpfiles-setup.service loaded active exited Create Volatile Files and Directories
systemd-udev-settle.service loaded active exited udev Wait for Complete Device Initialization
systemd-udev-trigger.service loaded active exited udev Coldplug all Devices
systemd-udevd.service loaded active running udev Kernel Device Manager
systemd-update-utmp.service loaded active exited Update UTMP about System Boot/Shutdown
systemd-user-sessions.service loaded active exited Permit User Sessions
udisks2.service loaded active running Disk Manager
ufw.service loaded active exited Uncomplicated firewall
unattended-upgrades.service loaded active running Unattended Upgrades Shutdown
upower.service loaded active running Daemon for power management
user-runtime-dir@1000.service loaded active exited User Runtime Directory /run/user/1000
user@1000.service loaded active running User Manager for UID 1000
wpa_supplicant.service loaded active running WPA supplicant
zfs-import-scan.service loaded active exited Import ZFS pools by device scanning
zfs-load-module.service loaded active exited Install ZFS kernel module
zfs-mount.service loaded active exited Mount ZFS filesystems
zfs-share.service loaded active exited ZFS file system shares
zfs-volume-wait.service loaded active exited Wait for ZFS Volume (zvol) links in /dev
zfs-zed.service loaded active running ZFS Event Daemon (zed)
zsys-commit.service loaded active exited Mark current ZSYS boot as successful
No zeitgeist nor any libraries associated with it.
Not sure if true that @Frog found it.
I read Frog's screenshot as "Package 'zeitgeist' is not installed, so not removed"
which to me reads he never had it (unless I missed something )
)