Run this in console of any YT Playlist to download all playlist video Title, Link in a TSV(Tab Seperated Value) file.

YouTubePlaylistToTSV.js

// if it doesn't get the actual list, copy new xPath from Elements
let conts = getElementByXpath("/html/body/ytd-app/div/ytd-page-manager/ytd-browse/ytd-two-column-browse-results-renderer/div[1]/ytd-section-list-renderer/div[2]/ytd-item-section-renderer/div[3]/ytd-playlist-video-list-renderer/div[3]");

let tsvData = "No.\t Title\t Link\n";

// loop through all contents
for(let i = 0; i < conts.childElementCount; i++) {
    let cont = conts.childNodes[i].childNodes[3].childNodes[1].childNodes[3].childNodes[1].childNodes[3];
    let link = "https://youtube.com" + cont.getAttribute("href").split('&')[0];
    let title = cont.getAttribute("title");
    let data = `${i}\t${title}\t${link}\n`;
    tsvData += data;
}
// download tsv
download(tsvData, "playlist.tsv", "text/tab-separated-values;charset=utf-8");

// get element by xPath
function getElementByXpath(path) {
  return document.evaluate(path, document, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue;
}
// download file from data
function download(data, filename, type) {
    var file = new Blob([data], {type: type});
    if (window.navigator.msSaveOrOpenBlob) // IE10+
        window.navigator.msSaveOrOpenBlob(file, filename);
    else { // Others
        var a = document.createElement("a"),
                url = URL.createObjectURL(file);
        a.href = url;
        a.download = filename;
        document.body.appendChild(a);
        a.click();
        setTimeout(function() {
            document.body.removeChild(a);
            window.URL.revokeObjectURL(url);  
        }, 0); 
    }
}