There are two problems, one of which is how to make sure that you are on the official site and that the link that you have scanned is the correct link.
we have phising links to offical sites and it is hard to know real from fake
have to make sure that your device is safe and does not contain viruses that change download links.
If you can access the official website, you will not suffer from downloading the correct application, whether it is from the store or from anywhere else.