Greasemonkey/Tampermonkey script that hides Youtube Shorts & Upcoming from subscription feed

YoutubeHideShorts.user.js

// ==UserScript==
// @name        Youtube Hide Shorts & Upcoming
// @namespace   http://jdel.us
// @description Hide Youtube Shorts & Upcoming from subscription feed
// @include     http://*.youtube.com*
// @include     https://*.youtube.com*
// @include     http://*.youtu.be*
// @include     https://*.youtu.be*
// @version     0.7
// @grant       none
// ==/UserScript==

let host = window.location.href;
let url = window.location.pathname;
let ytLinks, ytVidTitles, ytChanName, ytMetaDesc;
let timer = 0;

console.log('hide shorts start');
timer = setTimeout(() => {
    hideYTShorts();
}, 500);

window.addEventListener("scroll", hideYTShorts);

function hideYTShorts() {
    ytLinks = document.getElementsByTagName("ytd-rich-item-renderer");
    ytVidTitles = document.getElementsByTagName("yt-formatted-string");
    ytChanName = document.getElementsByClassName("yt-simple-endpoint");
    ytMetaDesc = document.getElementsByClassName("ytd-video-meta-block");

    for (let i = 0; i < ytLinks.length; i++) {
        if (ytLinks[i].innerHTML.search("href=\"/shorts") !== -1) {
            ytLinks[i].style.display = "none";
        }
        if (ytLinks[i].innerHTML.search('aria-label="Upcoming"') !== -1) {
            ytLinks[i].style.display = "none";
        }
    }

    if (timer) {
        clearTimeout(timer);
        timer = 0;
    }

}

console.log('hidden shorts end');