Hello,
The thing is that such a floor ultimately looks different than a picture on the internet. The images often differ.
You should at least have seen the floor, or at least a sample of the floor you choose, in person. Then you are really playing it safe. From what I have seen online, I have to say that there are cheap offers, especially for branded products. These are not cheap because they are produced cheaply, but because there is little intermediate trade where every dealer wants to make a profit and because the goods do not have to be stocked. Cheap products in the hardware store are mostly no-name labels. You never really know how good they are. Keywords: "top layer detachment", "swelling of the MDF carrier board in laminate", or "joint formation"...