Is there a site where the features ar shown? Or a video?
Nothing formal as yet, but the TTG blog is an example. These posts in particular show off some of the newer layout features. Not just the information on the page, but the layouts of those pages.
https://theturninggate.net/blog/update-backlight-6-2-0
https://theturninggate.net/blog/update-backlight-6-2-1
And if you haven’t yet seen our video on essay features, I very much recommend it, as blogs and essays utilize this same implementation: