Alarm Control Panel exposed to HomeKit

I’m trying to move from a homebridge instance to all in homekit on home assistant.

One thing I have in homebridge is my alarm only exposes to homekit that it has arm_away and arm_sleep.

I’ve told home assistant these are the capabilities of my alarm. But the device as shown in HomeKit still has all 4 states. Is that expected?

Is there the capability in homekit to set the alarm states to just those supported?