Query about iPhone in Qatar

Hi,

I'd be traveling via Hamad Int. Airport next month. And I have the following queries:

1. Is the iPhone 14 pro max sold in Qatar compatible with physical sim card?

2. Is there anyway I can pre-book and pick up from the duty free?

3. If bought from the duty free will I get exempt in tax?

4. Is there any email address to contact the Apple, Duty Free?

Regards,

K