Is it really not OK to ask how to deal with smells, greasiness and crumbs without accusations of guilt tripping?
I agree that what and how much the woman chooses to eat is none of the OP’s or anyone else’s business.
But where, and how she eats it, including for how long, are, if the OP shares a desk and phone with her.
in our organisation eating while in a public facing task would be considered unprofessional. And not allowed on reception. Beyond a mint kept below the counter, perhaps, or taking a chocolate from a box if someone brought them round from a client or birthday or whatever.
Wings are messy and Labour intensive to eat, whatever their nutritional status.
OP, I would just say ‘can we just keep snacks and food off the desk please? I’m getting crumbs in my handbag and the phone gets all greasy”
And after that if she keeps it up, introduce wipes. You will have been open and direct with her about why, so not passive aggressive.
The frequent finger licking and phone handling is disgusting. I would ask your manager for a separate phone, it shouldn’t be hard or expensive to do, and I am surprised that people are still sharing phones in this Covid era.
Or Tell your manager you would be able to be more productive with a headset type arrangement. Which would also leave you more hands free for desk wiping.
If none of this works go full PA: get a friend as a mystery shopper to give feedback about messy smelly reception or KFC on the desk or chomping down the phone.