i.ytimg.com/vi/ixTvuZWT4rk/maxresdefault.jpg

maxresdefault thumbnail · Issue #373 · nullscreen/yt · GitHub

How to get HQ thumbnails? - Stack Overflow

php - Fetch highest thumbnail resolution - Stack Overflow

All about Thumbnail Images as ytimg maxresdefault especially in Search

i.ytimg.com/vi/IXkBd4Ne5n4/maxresdefault.jpg?sqp=

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

i.ytimg.com/vi/I4j4OGl_XHQ/maxresdefault.jpg

All about Thumbnail Images as ytimg maxresdefault especially in Search

get-thumbnail option gives url to broken images. · Issue #402 · yt-dlp/yt-dlp · GitHub