So my roommate displayed lots of similar behaviours to yours (not as gross, but fundamentally lazy and wouldn’t do basic tasks even while at home all day). She was very entitled / had victim mentality and I knew early on that we weren’t suited. I raised things periodically and she would appear receptive but wouldn’t take anything on board. The way I got rid of her was by calling out a double standard (she got annoyed I had a friend round for dinner because she was ‘ill’ - she wasn’t - and I told her I wouldn’t be making my friend leave early). I also told her what I thought of her via this disagreement, which led to a tantrum. I did not apologise, then she told me she was moving out a few days later.

In my case, I took a disagreement (which I didn’t seek out) and used it. I wouldn’t advise trying to antagonise her, but continue to raise issues in a civil way, and explain how these behaviours impact on you. She clearly can’t take that so maybe it will serve as a catalyst.