I feel like almost literally every tech change I’ve seen in the past ten years is negative so maybe that’s just the problem at hand? Or at least the ones people don’t like, by the nature of public criticism. No one talks about bug fixes and useful updates

That’s just simple negativity bias. All the negative things are easier to recall than positive things.

but they will talk about increasing costs and decreased privacy.

Yeah, that’s actual enshitification and objectively bad.

I’ve had to block the !enshitification@lemmy.world community because it’s awful from all the whining about things that people don’t like while not being enshitification. I unblocked it to find an example and this was the first post in the list: https://lemmy.zip/post/27425725