@dan_yes Once you turn on Dark theme, ambient mode is automatically enabled. Youtube is suggesting as popup message at the left-bottom of the screen. Didn't see that? Also you can find "Ambient Mode" option at the settings tab.
@tibor_szantai2 Yes they should follow gen-Z mentallity. Youtube is challenging with instagram stories & reels. Because user experience is changing via short videos and quick informations about "X Topic". So, I guess there is apperance update is need. gen-Z is expecting more visualization. They're so used to it from games.
Youtube's new ambient mode is a great idea that could cause a surge in audience engagement. With the ability to switch between two modes - the actual video and "atmosphere," this will give people more ways to interact with the content they like.