alt Hacker NewsImho CMS is just a tool that generates static html files on the server. The distinction is a bit artificial. CMSes have static html cashing and CDNs will allow you to "one-click" firewall the dynamic administration and cache the static html for you.
Static website generators are cool way for programmers to do that work on their machine but in the end the distinction of what gets served is very small (if you set up the basics).
CMSs allow non-technical people to update the site - that's why WordPress, Drupal, and all of the shambling corpses of "digital experience platforms" still command the dollars and eyeballs that they do.
Go ahead and give your content people access to a static site builder and see how quickly the process falls apart. Static site generators are perfect for engineers but terrible for the marketing people that are the actual "customers" of your public-facing website.