Ok, after listening to the whole thing: I don't hate it? I might even like it?
The sound quality is obviously garbage, which is the leak for you. It reminds me of some of the weirder music I listened to back in the mid 2000s. Most obviously and mainstream-ly like a more ambient / esoteric version of the already somewhat odd Amon Tobin, who did the Chaos Theory soundtrack. Which is something.
I also think it's much more interesting and coherent than whatever the fuck was going on in the
reveal trailer. To me that sounded like it was mixed by at least three different people fighting over the controls, who at various points were very inspired by Red Alert, Mad Max: Fury Road, and Tenet, didn't agree on anything and were contractually obliged to put a remixed pop song in there.
I'll check it out once a good quality version is available. Whether it works for the game in context is impossible to say.
I definitely like that something so mainstream as battlefield is getting a soundtrack this weird.