Idk why steam is so weird sometimes, but they somehow decided to add hundreds of unrelated demo games to my account. I googled around and other people have that too, one guy made a very radicale erase script, which removes all f2p's, but i want to keep my favourite f2ps :<
so i modified it a bit to only remove the dogsh1t demo games:
Please dont just execute this into your web developer console, im clearly not a js dev and this could seriously damage your account.