How can I make my garuda like this

This video is more than one year old and the relevant release, KDE multimedia, has been discontinued.
Anyway, you should clarify what you mean with "like this" (theme, applications, etc, ?) and maybe with "my Garuda" (the starting point).
Ideally, you could start from scratch with KDE barebones, keeping in mind that this is not supported and, as said, you should define upfront what you want to add and configure.
It could be in the future there will a new KDE edition, but I don't think anyone can commit on dates...