If you are going to drive most of the traffic through ads, social media, and other formats that require hands-on work, stick with a template site if it’s your first site.
Especially if your site is simply a placeholder, legitimizing your business so people can find you online. This kind of site is not going to be receiving thousands of hits per day, so you don’t need to spend money on the power of a Wordpress coded site. Template sites are cheaper, easier to set up (My first website took me one evening to create on a template site… While working on a laptop!), and many of them are actually really great sites. My favorite template sites are Strikingly and Squarespace (Not a sponsor!) because they are powerful platforms that are easy to navigate but have a lot of tools that can help you convert visitors.