Youtube subscriptions - remove "most relevant" section

Removes the Most relevant section from YT subscriptions, tested on both desktop and mobile
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// ==UserScript==
// @name        Youtube subscriptions -  remove "most relevant" section
// @namespace   http://tampermonkey.net/
// @match       https://*.youtube.com/*
// @grant       none
// @version     1.1.9
// @license     MIT
// @author      aarron-lee
// @description Removes the Most relevant section from YT subscriptions, tested on both desktop and mobile
// ==/UserScript==

function isSubscriptionPage() {
    return location.pathname === '/feed/subscriptions';
}

const removeSection = () => {
    const mostRelevantNode = isMobile() ? 'ytm-rich-shelf-renderer' : 'ytd-rich-section-renderer'
    const path = `//${mostRelevantNode}[.//span[text()="Most relevant"]]`

    const o = new MutationObserver(
        () => {
            if (!isSubscriptionPage()) {
              // if user navigates to subscriptions page from another page,
              // YouTube's SPA loads the page without re-triggering userscripts.
              // thus, load the userscript for all of youtube.com, but shortcircuit the observer unless Subscriptions page is detected
              return;
            }

            const res = document.evaluate(
                path,
                document,
                null,
                XPathResult.ORDERED_NODE_SNAPSHOT_TYPE,
                null,
            );
            const n = res.snapshotLength
            if(n != 1) {
                return
            }

            const e = res.snapshotItem(0)
            if(e instanceof Element) {
                e.remove()
            }
        },
    );
    o.observe(
        document.body,
        {
            childList: true,
            subtree: true,
        },
    )
}

function isMobile() {
    const url = window.location.href;

    if (url.includes('m.youtube.com')) {
        return true
    }
    return false
}

function main() {
    removeSection()
}


main()