No, that link shows one tracklist by one author. To see more like it, try this search.

if you mean that all the tracks listed in @celestialghosts submission on that particular link are under CC0 public domain license, then the answer is yes. 

if you want more public domain license assets like that then  @claudeb has given you a link for that. notice the tick box on the left side bar has been ticked. CC0. :)

Lots of tracks celestialghost, thanks for sharing. 

That link shows one submission which is licensed under cc0.

All the songs there are licensed under cc0.