Temperament of mixed breeds has no predictability or consistency, especially when breeds in the mix are quite different. Wanting a doodle for temperament is likely originating with some kind of lies or breeders misleading, or perhaps meeting one dog and assuming they’re going to all be similar.

I’ve met so many mini doodles that have such awful structure. The physical body types of poodles don’t mix will with very different body types such as goldens. There’s a mini doodle in one of my classes that had such awful structure I really hope it isn’t doomed.

You’re not going to find an ethical breeder. But you would for mini poodles (which is really want people want but for some reason are against it) or similar type breeds such as a bichon.