Nevermind, Razer is stupid. Decided to shorten my search on google to just "game audio problems" and I found out that for some reason Razer was muting certain games in the Synapse mixer tab. No idea why, but it works for me. Guess I never needed to reinstall all those drivers or Steam.
For the past few days, my audio has been nonexistent in three Steam games. Let me make that clear, three Steam games: Portal 2, American Truck Simulator, and Bus Driver. Every other game works fine, and every other thing on my computer works fine (Chrome, youtube, discord, etc.). I think it...