The liquid glass debacle seems minor compared to the crappy keyboard debacle five or ten years ago and that didn't really hurt them in the long run.

I don't have a Mac but my tablet and phone are both running liquid glass and it's... fine. I lost my favorite Sudoku app (Enjoy Sudoku) when they updated and for me that's the worst thing about it.

I think on forums like this that tend to have a lot of Apple fans and haters, the impact of UI changes is overblown. Normies mostly don't care. They notice the change when it happens and then two days later they have already forgotten what the UI used to be.