@verbrecher I have this in "My filters" tab in uBlock Origin and it's working

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)

But you can also use Invidious or Piped, or a (CLI) client like pipe-viewer

@nixCraft @claushoumann