Stop Wasting Time: Removes Thumbnails from Youtube by henrymdeutsch

/* ==UserStyle==
@name         Stop Wasting Time: Removes Thumbnails from Youtube
@version      20220220.21.44
@namespace    userstyles.world/user/henrymdeutsch
@description  On Youtube main page:
- only allows the top 8 news stories in feed

On a creator's page:
- only allows first 3 videos in first column

On an individual video view:
- removes sidebar of suggestions and thumbnails after video
@author       henrymdeutsch
@license      No License
==/UserStyle== */

@-moz-document url-prefix("https://www.youtube.com/") {
/* Main page */
/* only allow 8 Top News stories. Take away theme search terms (#header) */
ytd-rich-grid-row:nth-child(n), ytd-rich-section-renderer:nth-child(n+10), ytd-rich-item-renderer:nth-child(n+9), #header {
    display: none !important;
}

/* Creator's page */
/* only allow first 3 videos in first column of exploration */
ytd-item-section-renderer:not(:first-child), ytd-grid-video-renderer:nth-child(n+4) {
    display: none !important;
}

/* Individual Video View */
/* remove thumbnails from side bar (#secondary) and end of videos */
#secondary, .ytp-videowall-still, .ytp-ce-element, [class*='countdown-container'], .html5-endscreen {
    display: none !important;
}
}