I think you should use whatever you like. There's no rule here. I do think ORB is out of style, matte black is trending more.

I have ORB hardware on white cabinets, and I also have ORB doorknobs and hinges throughout the house. I didn’t necessarily pick them to go together though. I think you can do what you like. (I just personally don’t like brushed nickel and it feels a little dated on doorknobs to me) To @megs1030 ‘s point, I do think the most current version of ORB looks more black. Our cabinet hardware is from Rejuvenation and looks more black than brown. (Rejuvenation doesn’t even make matte black AFAIK)

Hardware adds up to a lot of funds. Pick the lowest cost finish that you like for the hardware used throughout the home. For the rest of the finishes, use special ones for emphasis in very visible areas.

I used ORB on my white cabs just two years ago and I love it and do not feel I am on my way out. To me, black hardware can have a more country/farmhouse look I did not want.
I used brushed gold hardware on my blue island. (Which also some say is a fading trend but again, I love it and don’t care)

My sink faucet is chrome. Anywhere I couldn’t decide I just went with chrome bc I feel like it’s a classic.
But whatever you choose, I say just make sure you like it and it goes with whatever style you like.

Like ProSource said, it can eat a lot of funds. I honestly don’t know how people afford some of the hardware they do. I needed close to 100 knobs/pulls. I got them all off amazon at a big savings and so far so good.