`reset` doesn't even clear the scrollback buffer on all terminal emulators. In fact there's no formal specification for how scrollback buffers should behave because they're a modern incantation. Take iTerm2, this is what happens when I run `reset` and then scroll up:

    lmorg ~ % reset
    
    lmorg ~ % reset
    
    lmorg ~ % which reset
    /usr/bin/reset
    lmorg ~ %

You might find the ANSI escape code for reset, {ESC}c, does what you need:

    function reset {
        printf '\033c'
    }

The above code should work on sh, Bash, Zsh, Oil and Murex.