It’s maybe not a perfect fit, but personally I think it’s all shades of enshittification, a term coined by Cory Doctorow here:

https://pluralistic.net/2023/01/21/potemkin-ai/#hey-guys

Here is how platforms die: first, they are good to their users; then they abuse their users to make things better for their business customers; finally, they abuse those business customers to claw back all the value for themselves. Then, they die.