I don't see any solid facts pointing out for this being an official channel. And some stuff seems fishy:
-Not linked in any of the other PlayStation legit accounts
-The link for this channel or the song are not on Naughty Dog's tweet promoting the song or
on the Outbreak Day website which lists all the available platforms for the song
-Official uploads like theirs are not common for game soundtracks, especially in this case because PlayStation Music is just a service tied to Spotify, not a music distributor. Also, why only these select games?
-Don't see a single link in their descriptions to listen or buy the soundtracks in other services, which would be likely for an official account. PlayStation has a deal with Spotify (which also makes this extra fishy) and the track is available on all the other main services, but you don't leave indications for that anywhere at all on the video's description?
-Yet, on every video, they leave a comment with an Amazon link for the game (why not PlayStation store?), which is really weird. I'm suspecting it an affiliate link too
-The only PlayStation Music 100% legit presence on YT is done through
a playlist on the main PlayStation account, where they have a video as new as 16 days
So I'm locking this up because I don't see any reasons to believe this a credible source