That’s not what enshittification means. You can just say they made it worse.
The phenomenon of online platforms gradually degrading the quality of their services, often by promoting advertisements and sponsored content, in order to increase profits
There's literally thousands of complaints on Steam, some people also report an increase in RAM usage up to 1 GB, that's insane on older machines, and even on new ones, I want my RAM for my games tyvm.
I have noticed my library fail to render, requiring a restart of steam. Enshittification is the wrong word though, I don't think steam is trying to monetize us any more than usual.