I suspect the ID3 will be longer than the ID4 as the AP are £0-£1399 where the ID4 is currently £2849- £5900. My dealer told me 20 weeks approx. for ID4 and 27 for ID3 that was a week ago. Those weeks are from built time so add 3-4 weeks in shipping to get to the dealer.
Who knows though what might happen between then and now, they might get worse or better.