Icing in dev mode - question

Hi there
I’ve asked this question in several places but haven’t been able to get a response. Hoping some devs here might help…

Can anyone confirm if MSFS icing still occurs when using Dev Mode? I understand there’s a slider in Dev Mode to check out the icing etc but I really want to know if, all else being equal, it will turn up naturally of its own accord?

I’ve been through what I think are icing conditions but nothing has shown up. Wondering if Dev Mode is interfering.