OBB too large for Google Play - but I'm not uploading to Google Play

I am trying to upload my app to Oculus, but when I hit Split Application Binary and build, I get an error that says the OBB is too big for Google Play (max 2 GB). But when I look online, I see things that say the OBB can be up to 4 GB for Oculus. Is there a way to get around this error? I know a little about Asset Bundles for Unity, and am using one for some of the audio, but the way my app is set up it would be hard to use a lot of Asset Bundles - I tried to bundle up one of the scenes, and was able to load it from code, but most of the shaders were missing, and hunting down dependencies is not going to work. Since I'm using AV Pro Video for my videos, asset bundles aren't really going to work for the videos either. Any help/info is appreciated, thanks!