Tampermonkey script to disable autoplay on YouTube home user channel

// ==UserScript==
// @name         Youtube - remove autoplay in user chanel
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  try to take over the world!
// @author       You
// @match        https://www.youtube.com/channel/*
// @match        https://www.youtube.com/user/*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    const observer = new MutationObserver(function(mutations) {
        const video = document.querySelector("video");

        if (video) {
            video.pause();
        }

    observer.observe(document, {attributes: false, childList: true, characterData: false, subtree: true});
})();

Free