In the folder browser there are kits of samples and you can organize your samples however you want. But you still gotta load the samples to a sound manually (a sound being all the data of the sample, envelope, filter, LFOs, effects, etc).
I’m not sure how kits work on the model devices because they are honestly off my radar but on the Rytm a kit is all 12 pads with their own sound if my memory serves me. I’m not sure if there’s more to it than that, it never seemed like a big deal to me (though I’ve never owned a Rytm so maybe someone could explain why it’s so cool).
There were some restrictions with it as well, as in changing a sound in a kit affects that sound across all patterns where on the digitakt each patterns sound is kinda unique to that pattern, it’s more of a workflow difference than a true limitation for either device.