How to fix and revert the new youtube UI back to how it was (fixes comments, thumbnail size, title)

Copy and paste the below
! KZbin UI Fix
youtube.com###related #thumbnail.ytd-rich-grid-media:style(margin-right: 8px!important;height: 94px!important;width: 168px!important;min-width: 168px!important;)
youtube.com###related #avatar-link.ytd-rich-grid-media, #related #attached-survey.ytd-rich-grid-media, #related .ytd-rich-shelf-renderer .button-container.ytd-rich-shelf-renderer:style(display:none!important;)
youtube.com###related #dismissible.ytd-rich-grid-media:style(display:flex;flex-direction:row!important;)
youtube.com###related #details.ytd-rich-grid-media:style(width: 100%!important;min-width: 0!important;)
youtube.com###related #contents ytd-rich-item-renderer:style(margin:0!important;margin-top:8px!important;)
youtube.com###related ytd-rich-grid-row #contents.ytd-rich-grid-row,#related h3.ytd-rich-grid-media,#related ytd-rich-section-renderer #content,#related #rich-shelf-header.ytd-rich-shelf-renderer:style(margin:0!important;)
youtube.com###related ytd-rich-item-renderer.ytd-rich-grid-row,#content.ytd-rich-item-renderer:style(width:100%!important;)
youtube.com###related #video-title.ytd-rich-grid-media:style(font-size:1.4rem!important;)
youtube.com###related .ytd-channel-name a,#related #metadata-line.ytd-video-meta-block span:style(font-size:12px!important;)
youtube.com###related ytd-rich-grid-renderer #contents:style(padding-top:0px!important;)
youtube.com###related .ytd-rich-shelf-renderer ytd-rich-item-renderer.ytd-rich-shelf-renderer:style(width:130px!important;min-width: 130px!important;)
youtube.com###related #contents.ytd-rich-shelf-renderer:style(display: flex !important;flex-direction: row !important;gap: 8px !important;flex-wrap: nowrap!important;max-width: 400px!important;overflow-x: scroll!important;overflow-y: hidden!important)
youtube.com###related .ytd-rich-shelf-renderer .yt-core-image:style(object-fit: cover!important;)
youtube.com###related ytd-rich-section-renderer #contents:style(margin-left:0!important)
youtube.com###related #contents ytd-rich-section-renderer ytd-rich-item-renderer:style(margin-top:0px!important;)
youtube.com###related .ytd-rich-shelf-renderer ytd-rich-item-renderer.ytd-rich-shelf-renderer[hidden=""]:style(display:block!important;)
youtube.com###related #dismissible.ytd-rich-shelf-renderer:style(margin:0!important; border-color: transparent!important)
youtube.com###title yt-formatted-string.ytd-watch-metadata:style(font-size:20px!important; font-weight: 700!important; line-height:28px!important)
youtube.com##+js(set, yt.config_.EXPERIMENT_FLAGS.kevlar_watch_grid, false)
youtube.com##+js(set, yt.config_.EXPERIMENT_FLAGS.small_avatars_for_comments, false)
youtube.com##+js(set, yt.config_.EXPERIMENT_FLAGS.kevlar_watch_comments_panel_button, false)
youtube.com##+js(set, yt.config_.EXPERIMENT_FLAGS.web_rounded_thumbnails, false)
youtube.com##+js(set, yt.config_.EXPERIMENT_FLAGS.web_watch_rounded_player_large, false)
youtube.com##+js(set, yt.config_.EXPERIMENT_FLAGS.kevlar_watch_max_player_width, 1280)

[@71calex]

Commenting from down below as nature intended, many thanks !!!!!

[@DiobetesZalardo]

This is now the best KZbin video of all time.

[@Rigem.]

awesome

[@crimson3510]

what a great video man!🙌🙌

[@junokya]

no homo bro but I love you mwa

[@DiobetesZalardo]

One problem I'm finding with the fix is that when the browser window is _not_ maximized, I have very limited scrolling. Scrolling up and down operates as normal only when the browser window is maximized.

[@ErnestSmurf]

Is there anyway to make the side margins not so large? Because it's made everything squished into the centre of the screen and not even sizing up the page works. Otherwise, this is really handy. Cheers.

[@Boz1211111]

This is terrible!! Hope your revert method keeps working. Their ui changes are getting worse and worse. Last thing i had to do is use a script to remove rounded corners. I have no idea who approved of that, it literarly covers parts of video!

[@rattech]

It's actually crazy how many bad decisions KZbin make and stick by. They've been making the website worse and worse for years.

[@FoxyAnimater]

I wish that people could use peer tube instead, it fixes all the issues of KZbin by removing KZbin from the picture. ​@@rattech

[@FoxyAnimater]

News flash you could have just said that any browser that supports ublock origin supports this, Firefox also works, not just chromium-based browsers, this train of thinking will stop working when manifest V3 drops. All chromium based browsers will suffer from manifest V3. Firefox is gecko based, henceforth it will be completely ineffective against it, Firefox and its derivatives are keen on keeping the older API because it is just straight up superior.

[@rattech]

Cool. This video is intended for everyone to be able understand, from tech minded people to computer novices, so I leave out the waffle and keep it to the point, as that's what 99% of people care about, getting to the point. Otherwise the video will be twice as long, full of stuff most people watching don't care about.