I tried the same thing several times with the Pi 3 and the Pi 4, and someone more vocally pointed towards RISC-V. Some four years later, there is a somewhat working RISC-V port, but in the meantime there is still no working ARM port of any real use.

On the whole, I was not overly impressed with the Haiku OS community where it regards exploring widely popular platforms that, despite having some challenges, would provide them with a larger audience. It's their call, but as an original BeOS user (and who can actually spot the Be Book from my couch as I'm typing this) and someone who's spent the past two years delving into the Rockchip ecosystem, I'm quite saddened by the way things went. It's not as if they lacked other ARM options, they just a) didn't have the resources and b) were perhaps a tad too opinionated.