The irony is, the PE of lots of tech companies implies 30+ years to earn back your money. Some of these companies enshittify at a rate higher than being in existence within 30 years. So I am curious how this will end up.

30 years doesn't matter; 90 days does. If you can make enough money back over that period by enshittifying the company, you do it, even if that means selling the thing whole.