Probably, at least certain models and certain carriers. In general though I bet some carrier stores and Apple Stores will have some launch day supply and hopefully they get frequent resupply... the last few years weren't bad but the question is how badly has COVID effected production? Obviously it delayed the launch by 1 to 2 months depending on model so something hasn't gone well but I'm not sure if they are fully up to steam now or it will be limited in supply because of continuing issues.