How to set sensor mode on PiCamera2 with Arducam 1MP*4 Quadrascopic Camera Bundle Kit?

I’m using an Arducam 1MP*4 Quadrascopic Camera Bundle Kit.

I want to set the sensor mode to (2) - 2560x400 @150FPS:

When running the script, it seems that the camera is ‘configured’ for the correct resolution and format, but then the ‘Selected sensor format’ and resolution is incorrect:

I entered format ‘YUV420’ as PiCamera2 does not have the format SBGGRB, which may be why it is defaulting to SBGGRB_CSI2P instead.

How do I select format SBGGRB and resolution 2560x400 for 150 FPS?