How to avoid RHEL8 from spawning "systemd --user" instance on user login

Solution Verified - Updated -

Issue

  • On RHEL8, when a user logs in (using ssh, sftp or ftp), a systemd --user instance spawns automatically, consuming memory and CPU
  • On RHEL8, when a user cron executes, a systemd --user instance spawns automatically, consuming memory and CPU

Environment

  • Red Hat Enterprise Linux 8 (RHEL8)
    • systemd

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