systemctl --type=service --state=running
  UNIT                        LOAD   ACTIVE SUB     DESCRIPTION                               >
  cron.service                loaded active running Regular background program processing daem>
  dbus.service                loaded active running D-Bus System Message Bus
  fwupd.service               loaded active running Firmware update daemon
  [email protected]          loaded active running Getty on tty1
  ModemManager.service        loaded active running Modem Manager
  multipathd.service          loaded active running Device-Mapper Multipath Device Controller
  networkd-dispatcher.service loaded active running Dispatcher daemon for systemd-networkd
  packagekit.service          loaded active running PackageKit Daemon
  polkit.service              loaded active running Authorization Manager
  qemu-guest-agent.service    loaded active running QEMU Guest Agent
  rsyslog.service             loaded active running System Logging Service
  snapd.service               loaded active running Snap Daemon
  ssh.service                 loaded active running OpenBSD Secure Shell server
  systemd-journald.service    loaded active running Journal Service
  systemd-logind.service      loaded active running User Login Management
  systemd-networkd.service    loaded active running Network Configuration
  systemd-resolved.service    loaded active running Network Name Resolution
  systemd-timesyncd.service   loaded active running Network Time Synchronization
  systemd-udevd.service       loaded active running Rule-based Manager for Device Events and F>
  udisks2.service             loaded active running Disk Manager
  unattended-upgrades.service loaded active running Unattended Upgrades Shutdown
  upower.service              loaded active running Daemon for power management
  [email protected]              loaded active running User Manager for UID 0
  zabbix-agent.service        loaded active running Zabbix Agent

LOAD   = Reflects whether the unit definition was properly loaded.
ACTIVE = The high-level unit activation state, i.e. generalization of SUB.
SUB    = The low-level unit activation state, values depend on unit type.
24 loaded units listed.