I have been swopping wheels myself for a number of years. For my last car I got a set of Jaguar F Pace alloys from two Jaguar main dealers who were selling ex display wheels online. ID4 might be too new a vehicle for this just yet. I have also bought wheels from dealers breaking insurance write off's and had them refurbished. Or as others have suggested you can buy a specific set of winter alloys from the likes of Wolfrace, Mr Winter Wheels etc.
I have found that wheels do get a bit more damage prone in winter and kerbed mine in snow in Scotland in February. So have you thought about a set of much cheaper steel wheels as they tend to use with winter tyres on the continent? If I was to do it again that's they way I would go I think.