BfA has one of the best soundtracks for a modern expansion. Shadowlands wasn't as good but still had some great tracks.

Dragonflight being a more experimental expansion, I feel like they tried to return to more ambient music. But unlike the vanilla -> wotlk era, there was something off in thier production where it just became entirely unremarkable. I actually can't even recall a single song from DF from memory and that's definitely a first for WoW.