Is this normal behavior for MacOS Big Sur ZSH (Z Shell) terminal behavior? Sometime's shell commands such as find and or launchd as just a simple example execute properly. This is with the exclamation symbol "!" in front, leading with the expected output and no privilege escalation.

For example, running: !find / will still work. Or !sudo will execute.

But !echo '@' will not. But lead to the next command sometimes.

Output for !echo

zsh: event not found: echo

Output for !launchd

launchd

launchd cannot be run directly.

It seem's weird !sudo output's sudo syscallbypid.d