I created a bookmark to watch YouTube videos from Feedly, it basically creates a playlist from the YouTube videos you're following (20 at a time):

    javascript:!function(){const%20e=document.getElementsByClassName(%22entry%20entry--unread%22),t=[];Array.from(e).forEach(function(e){const%20n=e.getElementsByTagName%28%27a%27%29%5B0%5D,o=/https:\/\/www\.youtube\.com\/watch\%3Fv=(.+)$/.exec(n);o%26%26t.length%3C20%26%26(e.getElementsByClassName(%22EntryMarkAsReadButton%22)[0].click(),t.push(o[1]))}),window.open(%22https://www.youtube.com/watch_videos%3Fvideo_ids=%22+t.join(),%22_blank%22,%22noopener%22,%22noreferrer%22)}();void(0);