Affinity Photo works very well with my raws, no problem whatsoever :)
But it is painfully slow when i have to work on a big number of shots while not being able to change the settings for multiple images at once, which i usually did very quickly in camera raw.
Asking for camera raw was just a long shot :D
Unfortunately, i was not able to find a great alternative to camera raw, which can work together with affinity photo. I do like the raw functionality of affinity photo quite a lot, but i really miss this sort of "manual batch processing" ability of camera raw.
At the moment, i am waiting for the new ON1 raw program, which should be out soon, maybe that will do the trick.