Sample keybinding.json file for https://stackoverflow.com/a/75980711/45375

keybindings.json

// Content for a Visual Studio Code  "keybindings.json" file.
// To open your file for editing, use the command palette's "Preferences: Open Keyboard Shortcuts (JSON)" command.
// CAVEAT: You can copy and paste this file's content as-is to REPLACE your file's existing content
//         but in doing so you'll lose any PREEXISTING definitions.
//         To preserve any existing definitions, append everything *inside* "[" and "]" below to the *preexisting*
//         top-level "[" and "]" enclosure (a JSON array), and be sure to append a "," to the last preexisting object
//         inside the array before appending (or place the new objects at the top and append a "," to the second of 
//         the two new objects).
[
    // General definition for all shells *except* PowerShell.
    {
        "key": "ctrl+k",
        "when": "terminalFocus && terminalShellType != 'pwsh'",
        // Clear the screen and the scrollback buffer.
        // For shells other than PowerShell that is sufficient.
        "command": "workbench.action.terminal.clear"
    },

    // Override for PowerShell, to compensate for the following bugs:
    // * https://github.com/PowerShell/PSReadLine/issues/841
    // * https://github.com/PowerShell/PowerShell/issues/19479
    {
        "key": "ctrl+k",
        "when": "terminalFocus && terminalShellType == 'pwsh'",
        // Send a VT / ANSI escape sequence that clears the screen and
        // and the scrollback buffers and resets the cursor position.
        "command": "workbench.action.terminal.sendSequence",
        "args": {
            "text": "[Console]::Write(\"$([char] 0x1b)[2J$([char] 0x1b)[3J$([char] 0x1b)[H\")\u000d"
        }
    }
]