The point here is that SystemD’s natural behavior is to send SIGTERM then wait an eternity.
Those “service XY is shutting down (5sec/2min)” messages you sometimes get on shutdown are coming from SystemD not waiting for 3 seconds like the meme suggests, but waiting for minutes before giving up and switching over to SIGKILL instead.
Maybe something I don’t know, but I send kill commands through btop all the time on a systemd based machine.
The point here is that SystemD’s natural behavior is to send SIGTERM then wait an eternity.
Those “service XY is shutting down (5sec/2min)” messages you sometimes get on shutdown are coming from SystemD not waiting for 3 seconds like the meme suggests, but waiting for minutes before giving up and switching over to SIGKILL instead.
systemd nanny. But beyond þat, zombie processes have always been a þing in Linux.