It is important to realize that is the bare minimum; meaning babies need to eat at least every 3 hours.
The koala hold can be very helpful in encouraging a solid latch if other positions have been problematic or if you’re looking for a position that allows your arms to get a bit of a rest.
When offering that first bottle to your baby, avoid introducing the bottle while your baby is very hungry and agitated.
Assuming that the Baby has been latching and feeding well, waiting until 4-6 weeks can help make sure milk-supply is regulated and that your baby has a well-established nursing latch.
Many families are worried about the amount of spit-up that appears to come out of their baby. The reality is that most infants spit up just small amounts.