I suspect what you're going to end up with is endless proof that you just don't know what's going to work for you and your baby until you start experimenting 😆 Personally:
Bought but didn't use:
Big changing unit thing from IKEA - I put stuff on the shelves but never used it as a changing unit, might as well have just used a cupboard. I changed DS on a mat on our bed or the floor.
Anything other that babygro type clothes for the first 6 months
A clip/strap style baby carrier
Breastpump and bottles
Couldn't have enough of/do without:
Muslins - used them when feeding, for cleaning, as bibs, sterilised them and used them as 'toothbrushes' when DS started teething, stuck them in car windows as sunshades...
Babygros and cotton blankets for swaddling - then sleeping bags from about 3 months old
Stretchy sling wraps
The moses basket - I just moved it round the house with me for the first few months