Your bun sounds like a normal bun 🙂
Thumping doesn’t absolutely have to be a part of the rabbit courtship ritual, but it can be. Honking doesnt have to be about mating, some (many) neutered buns honk and buzz and circle when they sense the possibility of something good to eat. It seems likely that rabbits have a rather “limited” repertoire of behaviors, so they use their standard sets of behaviors to fit all kinds of situations. This is why rabbit behaviors always must be interpreted in context.
This time of year, most buns go through some form of “March Hare Syndrome”. It affects both neutered and intact rabbits, but intact rabbits more (unsurprisingly!) Rabbits and hares have a very high sex drive and they’re at the top of their game in the spring. Just the other week I was lucky enough to get to see two wild hares do their courtship “dance” on a nearby field – they were bouncing around on their back feet and boxing the air, looking like small (but awesome) kangaroos 😃
Single male rabbits don’t absolutely have to be neutered. Intact bucks can get testicular cancer, but it’s not a huge risk like uterine cancer is in intact does. Single male buns are primarily neutered for behavioral resaons – f ex to prevent pee spraying, territorial aggression and unwanted sexual attention dierecred towards other house pets or the humans.
An intact buck will probably be more energetic than that same buck would be if neutered. Activity level vary a lot beteween individuals and it’s of course influenced by what environment the bun has access to.