You know, it’s interesting you comment that your finish is 220 followed by scotchbrite. As I’ve gotten better (for the most part) at having my bevels come off the grinder clean, flat, uniform, and crisp, it seems more to me that 100 micron (roughly 220), or at most 65 micron (that is 3m gator A65) is not a bad finish for kitchen knives … and a lot less work than hand sanding, especially for the bigger kitchen blades.
Btw, to get there, contrary to lore about ceramic belts, especially at the 120 grit level, I more and more find myself running the belt at much lower speeds. It still cuts, but does not heat nearly as fast, and I can be far more focused on where to grind to refine the bevel.
Fwiw…
Yes. It's about finding that combination of speed and pressure where the belt doesn't grab the blade, but rather rips off material.