Your wanted to know what other people did, do what I did.
Baby's 1- formula fed
After feed at around 10pm, I go to bed with baby, sleep until about 1, feed change and back to sleep by 1.40. sleep until 3, husband and I would switch sides of the bed (baby in co sleeper crib) he'd feed, and also do the 6 am fed. We get up about 8, both having had a decent amount of sleep.
Once night feeds were dropped, we alternated nights instead. We continued this until I got pregnant with my second (14m) at which point my husband did all wakings for now toddler as she's still woke up every night, as I needed my rest being pregnant.
Baby two -accidentally breastfed.
8-11 -, my husband gets now nocturnal toddler to sleep. Meanwhile I cluster feed newborn.
Newborn sleeps in co sleeper crib again. Baby wakes for 10-15m breastfeeds every 2-3 hours. once during the night I express, as my husband tries to give the previous nights expressed milk. Baby acts as if she's being murdered, we give up and I breastfeed. Husband sometimes ends up going in with toddler at night.
Now, I'm usually up on the night more with toddler (who likes to be awake for 2-3 hour blocks overnight) and my husband gets the kids up etc whilst I lie in.
This has been out sort of pattern irrespective of who is working, trying to share them load.