fantastic. Also, just so you don't have all that "YoU hAvE tHrEe ViDeOs LeFt" BS copy paste this to the "my filters" tab (go to about:addons, click on uBlock, there dots, "preferences", then "my filters") and you should be good to go:

youtube.com##+js(set, yt.config_.openPopupConfig.supportedPopups.adBlockMessageViewModel, false)

youtube.com##+js(set, Object.prototype.adBlocksFound, 0)

youtube.com##+js(set, ytplayer.config.args.raw_player_response.adPlacements, [])

youtube.com##+js(set, Object.prototype.hasAllowedInstreamAd, true)

Also here is another that blocks shorts entirely:

www.youtube.com##ytd-guide-renderer a.yt-simple-endpoint path[d^="M10 14.65v-5.3L15 12l-5 2.65zm7.77-4.33"]:upward(ytd-guide-entry-renderer)
www.youtube.com##ytd-mini-guide-renderer a.yt-simple-endpoint path[d^="M10 14.65v-5.3L15 12l-5 2.65zm7.77-4.33"]:upward(ytd-mini-guide-entry-renderer)
www.youtube.com##ytd-browse[page-subtype="home"] .ytd-thumbnail[href^="/shorts/"]:upward(ytd-rich-item-renderer)
www.youtube.com##ytd-browse[page-subtype="subscriptions"] .ytd-thumbnail[href^="/shorts/"]:upward(ytd-grid-video-renderer,ytd-rich-item-renderer)
www.youtube.com##ytd-search .ytd-thumbnail[href^="/shorts/"]:upward(ytd-video-renderer)
www.youtube.com##ytd-browse[page-subtype="subscriptions"] ytd-video-renderer .ytd-thumbnail[href^="/shorts/"]:upward(ytd-item-section-renderer)
www.youtube.com##ytd-browse[page-subtype="trending"] .ytd-thumbnail[href^="/shorts/"]:upward(ytd-video-renderer)
www.youtube.com##ytd-search .ytd-thumbnail[href^="/shorts/"]:upward(ytd-video-renderer)
www.youtube.com##ytd-rich-shelf-renderer[is-shorts]
www.youtube.com##ytd-reel-shelf-renderer
m.youtube.com##ytm-reel-shelf-renderer
m.youtube.com##ytm-pivot-bar-renderer div.pivot-shorts:upward(ytm-pivot-bar-item-renderer)
m.youtube.com##ytm-browse ytm-item-section-renderer ytm-thumbnail-overlay-time-status-renderer[data-style="SHORTS"]:upward(ytm-video-with-context-renderer)
m.youtube.com##ytm-browse ytm-item-section-renderer ytm-thumbnail-overlay-time-status-renderer[data-style="SHORTS"]:upward(ytm-compact-video-renderer)
m.youtube.com##ytm-search ytm-thumbnail-overlay-time-status-renderer[data-style="SHORTS"]:upward(ytm-compact-video-renderer,ytm-video-with-context-renderer)
m.youtube.com##ytm-single-column-watch-next-results-renderer ytm-thumbnail-overlay-time-status-renderer span:has-text(/^(0:\d\d|1:0\d)$/):upward(ytm-video-with-context-renderer)
youtube.com##ytd-rich-grid-row, #contents.ytd-rich-grid-row:style(display:contents !important;)

AND REMEMBER TO CLICK "APPLY CHANGES" BEFORE LEAVING!