Although I stick to composting food scraps and yard waste, when I read about manure composting basically all guidance said that in order for it to be safe you needed to make sure it went through a hot composting cycle and it was better to let it "cure" for a further two years afterwards. At that point I'd throw in the towel and only use it on things that were not for human consumption, and not even near things that are being grown for human consumption.
Unlike the other nasty stuff that’s made up of chemicals!
https://www.supernaturalbrand.com/
I used to work at a hydroshop selling equipment and fertilizers. You wouldn't believe the whacky branding in this market.
It's a furry animal that uses it's own mouth to clean itself afterwards. It's not just in the litter box, I promise you. Meanwhile people have flush toilets that function as a water powered waste dispersion gun so their own waste gets arbitrarily distributed equally well.
But I wouldn’t compare a litter box to the toilet flush. At least the toilet ensures most of the feces (save for the particles you’re talking about) is sent away.