Yes. Choosing the right theme is one of the first steps in a build — we consider your product type, catalog size, and brand style, then customize the chosen theme (colors, fonts, layout, sections) so it doesn't look like an out-of-the-box template. In some packages a more heavily customized or bespoke layout is available.
We generally recommend starting with one of Shopify's free themes, since it makes it easier and quicker to integrate third-party Shopify apps when you want to roll out add-on features later, compared to a heavily customized premium or bespoke theme that may need extra work to stay compatible.