I’ve used one.
She didn’t say anything about it being cold or a fake baby.
It’s heavy and very life like, when I hold it I feel comforted.
My 3 year old niece was equally perplexed by “aunties baby” and finally after an hour said “it’s a doll auntie”
I bought this one
https://www.amazon.com/gp/aw/d/B07VKZPQDF?psc=1&ref=ppx_pop_mob_b_asin_title