Of course they need to be properly bonded, I’m talking about for initial introductions and getting them used to interacting with another bunny. I’ve seen plenty of “bondings gone wrong” because introductions were done too quickly, before the rabbits were even adjusted to another rabbit living in the house or before the new rabbit was accustomed to entirely new surroundings
We had a lot of rabbits in my high school (I went to an agricultural/vocational high school) and if we wanted to bond rabbits, that was how we would start off, though I’m sure people have different methods that work as well, this is just what we did and we had a lot of success when it came time to properly bonding them
different strokes for different folks, 1000 ways to skin a cat, etc etc, and I’m always happy to learn different ways of doing things so I’d love to hear how others start off introductions/proceed with bonding