Linux puskom-ProLiant-DL385-Gen10 5.4.0-150-generic #167~18.04.1-Ubuntu SMP Wed May 24 00:51:42 UTC 2023 x86_64

//lib/systemd/system/plymouth-poweroff.service

 [Unit]
Description=Show Plymouth Power Off Screen
After=getty@tty1.service display-manager.service plymouth-start.service
Before=systemd-poweroff.service
DefaultDependencies=no
ConditionKernelCommandLine=!plymouth.enable=0
ConditionKernelCommandLine=!nosplash
ConditionKernelCommandLine=splash

[Service]
ExecStart=/sbin/plymouthd --mode=shutdown --attach-to-session
ExecStartPost=-/bin/plymouth show-splash
Type=forking