I think if nursery can be avoided (especially long hours!) when they are tiny, then that's better. I have no doubt that toddlers can get a lot out of childcare, but babies not so much. They need the steady attachment of a small number of adults, and the sort if individual love and affection that I can't see they'd get in a nursery. If necessary I'd fhoose a Childminder over a nursery for a baby, so they can create that closer bond, and keep the hours as short as possible.
I'm not anti childcare, both of mine went (to a homely CM) from 18m, but my husband and I also work evenings etc sometimes, to reduce the amount of childcare needed, especially when they were tiny.
Its not possible in all families obviously, but where people can work flexible, it makes sense, for example, for one parent to start and finish early, and the other start and finish later, to reduce the amount of time a small child is in childcare.
The idea of a baby being in childcare for a couple of hours a day longer than it needs to, does make me a bit sad if I'm honest.
Then again, some parents are fussier about what did their child seats, or how much screentime they have. We all have ideas about what is important, and whilst time with my children is very high on my list, i can appreciate that it might not be on everyone's.