I breastfed anywhere, using the rugby gold and bbhugme pregnancy pillow and nursing pillow to support baby.
I had the made.com Bodil chair for my own comfort in pregnancy as it supported all the way up to head. Upright too, so can’t fall asleep in. You don’t really want a slouchy chair for your own body support and comfort, you’ll be spending a lot of time sitting and you need support not slouch. So I agree with you but for slightly different reasons.
I sat in bed with the bbhugme pregnancy pillow around me supporting my back and elbows, like a doughnut. Then the bbhugme nursing pillow under baby, where your own arms would be holding them. It means you’re not always stiff and holding them in one position, arms can move - really beneficial when cluster feeding. You can also tie the nursing pillow around your waist so you can breastfeed whilst standing and walking comfortably. DH tied the nursing pillow around his hips a lot more than me to hold baby as men don’t tend to have hips to rest baby on.
If you are very tired, practice safe co sleeping, don’t sit in the chair. We wore jumpers and socks, no duvet or bedding and I would side lie and baby could feed like that without needing to be held. If would have fallen asleep, baby would be safe. You put your arm above your head and it stops you rolling over towards baby.
koala hold is a good one for reflux.
Is the nursery separate to where you’re sleeping? In which case my advice might not apply, as baby will be in your room for 6 months anyway if following Uk advice. If your DH wants a lean back chair for reading to baby then doesn’t matter once past sleep deprivation stage. SIDS risk drops off after 1yo, and still a risk until they’re a bit older (haven’t read up on it in a while so don’t want to say what age).
I’m a bit confused - if the chair is for breastfeeding why does it matter what DH wants? Or do you mean general nursery chair? Either way, hope my post helps and best wishes for the baby.