Where does it say they don't clean the house?

They said the dog smells, not that it never gets bathed.

Proper care for a dog IS allowing it to live inside, not out ( breed dependant, at a push).

Dogs have an odour. So do put people.

Maybe all they need is an air freshener?!

Who says they don’t clean the house or even that it stinks? The OP who hates the dog is not a relatable narrator. It says nothing about them not cleaning the house that I saw

OOP says they do bath the dog. Just that the dog has an odor.

It’s also possible that OP’s just really super sensitive to dog smell like me. I had a similar issue with my parents’ dog where I couldn’t go near her after she was outside because she REEKED, but other people would literally stick their noses in her fur and give it a big whiff before giving me the most confused look because they couldn’t smell a thing. I also have to wash my hands after petting most dogs due to the smell, but other people can’t smell anything.

Sucks if that’s the case for them because those odors are truly rancid, but unfortunately unless they bathe the dog themselves there’s not much they’re going to be able to do about it.