Btw- tidal embedded videos from youtube web. It's not extra stuff from Tidal servers... Also, youtube air videos in VP9 of H264 formats with AAC or OPUS audio. Tidal just can stream video from YT in better A/V codec. But it's the same source.
As I said - you can choose between VP9 and H264 codecs Update- they are the same videos but they are interlaced and dithered. Im searching how is this kind of improvement called.