Yes, I'm aware of that. There are many CM Systems that are as leaky as a strainer. That's why I've thought of the familiar ones. It is still an unknown area to me. What made me unsure was that when I read about these, I understood that they were on a separate server where you had to register and point your domain to that server area. Now it shows from previous answers that I have misunderstood this. So, then it's clear. So, I go for Joomla or WordPress and insert my own design in the one I choose from these two. I know these most by name back in time, and a lot has changed since then.
Since this will be a site for an association for some friends who have a club for men, where there will only be a few pages with info about the club / what they do, a page that deals with the members, and one for photos to be categorized. In short, this is the most important thing. So, which of the two CMS I mentioned would best suit my purpose? I am also happy to accept other tips if others see that my needs are better suited for them. I do not need a CMS that is as big as WP and Joomla. But is dependent on a database and page with image database and processing.
Nice to be able to consult with someone who has experience with these. Database on the server is up to date with PHP, MySQL, etc.