Usually, the big hosting services have more than one solution. This is because we all have different needs. People have different needs; thus, almost everyone has different packages; for example, you may have a few MB of the total space, or have unlimited space and one database, or more features such as one click WordPress installation, and more. Depending on your needs, you obviously choose a service with the lowest cost for your company or your personal need. Next, you can see an image from Top Host displaying the hosting services they provide:

As you can see, there are four options: in the first, you have one dynamic site; in the second, five dynamic sites; in the third, unlimited; and in the last, you have everything. Obviously, not every hosting company provides all the services from the image but they all have the same logic. Generally speaking, if you want to host some files or a website of a total size < 500 MB, you should be fine and the cost is not too much. However, if you want to host a website for a company such as an e-shop or similar, you need to invest in a good server such as the preceding one. It should be clear that when you have a company, you do not host your e-shop on a Raspberry Pi Zero W board. It may work but you have zero user reliability or support.