Is OBB max size still 4 GB?

Hi there, I'm using Unity version 2022.3.10 to develop a VR game for Meta Quest 3. I'm splitting the application binary into APK and OBB. I'm uploading my builds and installing them on the Quest 3. When I open my app it's seeming to use up a lot of memory on start, even though I am not currently including any of my asset bundles, and it is crashing on start due to memory overload and giving a "Low Memory" error. My APK size is small, about 66 MB. When I brought the main OBB size down to 700 MB it didn't crash. When I brought it back up to 2.6 GB it did crash. It was also crashing when the main OBB was 3.1 GB. Previously I had thought the max size for the main OBB had been 4 GB, and I had been able to upload builds with the main OBB size being up to around 4.1 GB. If I had gone higher than that, it would crash, similar to what it's doing now seemingly. Does anyone know if Meta recently reduced the max size for the main OBB down to 2 GB, or is it still at 4 GB? Any help is appreciated, thanks!