ive never heard of it, i looked at it a little and it seems to be more of a self host thing, which is a potential nightmare for a casual users sanity and security. feel free to clarify if im mistaken.

brave blocks ads IN and out of the (mobile web) yt video player, and plays video in the background(lockscreen) with no setup at all out of the box.

to my knowledge there is not a single other first party app on the ios app store that does this.