Yeah, that’s what I thought. No matter how steady I hold it, it’s capped at 1/2s. When I absolutely max out all the settings (not just Astro Max Exposure Time, but also ISO/Exposure Time to 32 seconds), I am able to get 1.51s. Which is still far from 30s+ range that some other phones allow. It’s not really something I would use often, if ever, but it’s another feature that the hardware is more than capable of, but the user has no access to.
I will definitely mention this to support. @Sunon_Cream, if you haven’t done so already, please make sure to also contactsupport and explain the issue to them (politely if possible).