i.ytimg.com/vi/Awgr5WbCHmQ/maxresdefault.jpg

thumbnail link doesn't work in all cases - Stack Overflow

Nichols Lures Pulsator - 5 lb Spotted Bass

All about Thumbnail Images as ytimg maxresdefault especially in Search

の動画のサムネイル取得が思った以上に簡単だった件

] Thumbnail download fails completely if maxresdefault.jpg is not available · Issue #21588 · ytdl-org/-dl · GitHub

All about Thumbnail Images as ytimg maxresdefault especially in Search