@DreamingCatTwitches ,
Anecdote isn’t data. Proper research is mixed but tends to show shared care produces the optimal outcome. I am more than happy to post some links if you like.
Your personal experience is your personal experience and is valid for you, but not necessarily anyone else.
So-called nesting is at best a temporary solution, and I don’t know a single person who has done it for more than a few months, so is not realistic. And, realistically, staying together in an unhappy marriage is also not good for children.
From my personal experience, my boys generally enjoy it as they get different things from both households. I am better at organising them and homework help, my ex has a pet and is maybe more ‘fun’ and chilled. The thing is neither of us are shitty parents and both of us put our boys first; it works well.
My children have two homes, not no home. Again, I ask you how you feel about weekly boarding or people with second homes that they use at weekends?
OP, it is a horrible process getting divorced but, ultimately, if you keep the children’s interests first and foremost, it can work out fine for everyone in the medium term.