I have a typical, classical (but modern-made) Western porcelain toilet.
Just a couple of years ago, they redid the entire bathroom (unasked for, forced "upgraded"). I've noticed many times when I'm about to get up from the toilet that it "wobbles", as if it's not "sealed" to the floor. In fact, it clearly isn't. It seems like I could just lift it straight up. It's not "fixated" to the bathroom floor, but merely standing there.
Is this a mistake? Lazy and incompetent workers? Or is it on purpose? Is this the "new thing" that they do for some reason?
I should clarify that nothing visually indicates that it's "broken" when you look at it, but when you sit on it, it's possible (and often happens by accident) that it "leans" a bit to the side if you aren't careful.
I truly cannot tell if this is intentional or a mistake, and what the purpose would be for not "sealing" it properly to the floor.
I should further clarify that it doesn't "rattle around" just like that. You need to "lean" with your body to one side for it to leave the floor on the other side. I haven't dared to make any further "experiments" since I'm scared that I'll break it.