ps -M

Linux: https://man7.org/linux/man-pages/man1/ps.1.html

   -M     Add a column of security data.  Identical to Z (for
             SELinux).

macOS:

    -M      Print the threads corresponding to each task.

Process, zombie process, fork, thread: ps, tree, pstree, ps axf, proc, pwdx, which, watch, sar -q, tload, uptime, Interrupts, pgrep, tasklist (Windows), Zombie process, pstack, docker ps, docker-compose ps, jobs, acct, process mrelease, pidstat, IPC, pidof